399800800

素因数分解:

$2^5\times 5^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 288

約数和(自身を含む): 1199923200

約数和(自身を除く): 800122400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 47, 49, 50, 56, 62, 70, 80, 94, 98, 100, 112, 124, 140, 155, 160, 175, 188, 196, 200, 217, 224, 235, 245, 248, 280, 310, 329, 343, 350, 376, 392, 400, 434, 470, 490, 496, 560, 620, 658, 686, 700, 752, 775, 784, 800, 868, 940, 980, 992, 1085, 1120, 1175, 1225, 1240, 1316, 1372, 1400, 1457, 1504, 1519, 1550, 1568, 1645, 1715, 1736, 1880, 1960, 2170, 2303, 2350, 2450, 2480, 2632, 2744, 2800, 2914, 3038, 3100, 3290, 3430, 3472, 3760, 3920, 4340, 4606, 4700, 4900, 4960, 5264, 5425, 5488, 5600, 5828, 6076, 6200, 6580, 6860, 6944, 7285, 7520, 7595, 7840, 8225, 8575, 8680, 9212, 9400, 9800, 10199, 10528, 10633, 10850, 10976, 11515, 11656, 12152, 12400, 13160, 13720, 14570, 15190, 16121, 16450, 17150, 17360, 18424, 18800, 19600, 20398, 21266, 21700, 23030, 23312, 24304, 24800, 26320, 27440, 29140, 30380, 32242, 32900, 34300, 34720, 36425, 36848, 37600, 37975, 39200, 40796, 42532, 43400, 46060, 46624, 48608, 50995, 52640, 53165, 54880, 57575, 58280, 60760, 64484, 65800, 68600, 71393, 72850, 73696, 75950, 80605, 81592, 85064, 86800, 92120, 101990, 106330, 115150, 116560, 121520, 128968, 131600, 137200, 142786, 145700, 151900, 161210, 163184, 170128, 173600, 184240, 203980, 212660, 230300, 233120, 243040, 254975, 257936, 263200, 265825, 274400, 285572, 291400, 303800, 322420, 326368, 340256, 356965, 368480, 403025, 407960, 425320, 460600, 499751, 509950, 515872, 531650, 571144, 582800, 607600, 644840, 713930, 806050, 815920, 850640, 921200, 999502, 1019900, 1063300, 1142288, 1165600, 1215200, 1289680, 1427860, 1612100, 1631840, 1701280, 1784825, 1842400, 1999004, 2039800, 2126600, 2284576, 2498755, 2579360, 2855720, 3224200, 3569650, 3998008, 4079600, 4253200, 4997510, 5711440, 6448400, 7139300, 7996016, 8159200, 8506400, 9995020, 11422880, 12493775, 12896800, 14278600, 15992032, 19990040, 24987550, 28557200, 39980080, 49975100, 57114400, 79960160, 99950200, 199900400, 399800800]

約数ペア:

[(1, 399800800), (2, 199900400), (4, 99950200), (5, 79960160), (7, 57114400), (8, 49975100), (10, 39980080), (14, 28557200), (16, 24987550), (20, 19990040), (25, 15992032), (28, 14278600), (31, 12896800), (32, 12493775), (35, 11422880), (40, 9995020), (47, 8506400), (49, 8159200), (50, 7996016), (56, 7139300), (62, 6448400), (70, 5711440), (80, 4997510), (94, 4253200), (98, 4079600), (100, 3998008), (112, 3569650), (124, 3224200), (140, 2855720), (155, 2579360), (160, 2498755), (175, 2284576), (188, 2126600), (196, 2039800), (200, 1999004), (217, 1842400), (224, 1784825), (235, 1701280), (245, 1631840), (248, 1612100), (280, 1427860), (310, 1289680), (329, 1215200), (343, 1165600), (350, 1142288), (376, 1063300), (392, 1019900), (400, 999502), (434, 921200), (470, 850640), (490, 815920), (496, 806050), (560, 713930), (620, 644840), (658, 607600), (686, 582800), (700, 571144), (752, 531650), (775, 515872), (784, 509950), (800, 499751), (868, 460600), (940, 425320), (980, 407960), (992, 403025), (1085, 368480), (1120, 356965), (1175, 340256), (1225, 326368), (1240, 322420), (1316, 303800), (1372, 291400), (1400, 285572), (1457, 274400), (1504, 265825), (1519, 263200), (1550, 257936), (1568, 254975), (1645, 243040), (1715, 233120), (1736, 230300), (1880, 212660), (1960, 203980), (2170, 184240), (2303, 173600), (2350, 170128), (2450, 163184), (2480, 161210), (2632, 151900), (2744, 145700), (2800, 142786), (2914, 137200), (3038, 131600), (3100, 128968), (3290, 121520), (3430, 116560), (3472, 115150), (3760, 106330), (3920, 101990), (4340, 92120), (4606, 86800), (4700, 85064), (4900, 81592), (4960, 80605), (5264, 75950), (5425, 73696), (5488, 72850), (5600, 71393), (5828, 68600), (6076, 65800), (6200, 64484), (6580, 60760), (6860, 58280), (6944, 57575), (7285, 54880), (7520, 53165), (7595, 52640), (7840, 50995), (8225, 48608), (8575, 46624), (8680, 46060), (9212, 43400), (9400, 42532), (9800, 40796), (10199, 39200), (10528, 37975), (10633, 37600), (10850, 36848), (10976, 36425), (11515, 34720), (11656, 34300), (12152, 32900), (12400, 32242), (13160, 30380), (13720, 29140), (14570, 27440), (15190, 26320), (16121, 24800), (16450, 24304), (17150, 23312), (17360, 23030), (18424, 21700), (18800, 21266), (19600, 20398)]