28557200

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:110

約数の個数: 180

約数和(自身を含む): 84137472

約数和(自身を除く): 55580272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 47, 49, 50, 56, 62, 70, 80, 94, 98, 100, 112, 124, 140, 155, 175, 188, 196, 200, 217, 235, 245, 248, 280, 310, 329, 350, 376, 392, 400, 434, 470, 490, 496, 560, 620, 658, 700, 752, 775, 784, 868, 940, 980, 1085, 1175, 1225, 1240, 1316, 1400, 1457, 1519, 1550, 1645, 1736, 1880, 1960, 2170, 2303, 2350, 2450, 2480, 2632, 2800, 2914, 3038, 3100, 3290, 3472, 3760, 3920, 4340, 4606, 4700, 4900, 5264, 5425, 5828, 6076, 6200, 6580, 7285, 7595, 8225, 8680, 9212, 9400, 9800, 10199, 10850, 11515, 11656, 12152, 12400, 13160, 14570, 15190, 16450, 17360, 18424, 18800, 19600, 20398, 21700, 23030, 23312, 24304, 26320, 29140, 30380, 32900, 36425, 36848, 37975, 40796, 43400, 46060, 50995, 57575, 58280, 60760, 65800, 71393, 72850, 75950, 81592, 86800, 92120, 101990, 115150, 116560, 121520, 131600, 142786, 145700, 151900, 163184, 184240, 203980, 230300, 254975, 285572, 291400, 303800, 356965, 407960, 460600, 509950, 571144, 582800, 607600, 713930, 815920, 921200, 1019900, 1142288, 1427860, 1784825, 2039800, 2855720, 3569650, 4079600, 5711440, 7139300, 14278600, 28557200]

約数ペア:

[(1, 28557200), (2, 14278600), (4, 7139300), (5, 5711440), (7, 4079600), (8, 3569650), (10, 2855720), (14, 2039800), (16, 1784825), (20, 1427860), (25, 1142288), (28, 1019900), (31, 921200), (35, 815920), (40, 713930), (47, 607600), (49, 582800), (50, 571144), (56, 509950), (62, 460600), (70, 407960), (80, 356965), (94, 303800), (98, 291400), (100, 285572), (112, 254975), (124, 230300), (140, 203980), (155, 184240), (175, 163184), (188, 151900), (196, 145700), (200, 142786), (217, 131600), (235, 121520), (245, 116560), (248, 115150), (280, 101990), (310, 92120), (329, 86800), (350, 81592), (376, 75950), (392, 72850), (400, 71393), (434, 65800), (470, 60760), (490, 58280), (496, 57575), (560, 50995), (620, 46060), (658, 43400), (700, 40796), (752, 37975), (775, 36848), (784, 36425), (868, 32900), (940, 30380), (980, 29140), (1085, 26320), (1175, 24304), (1225, 23312), (1240, 23030), (1316, 21700), (1400, 20398), (1457, 19600), (1519, 18800), (1550, 18424), (1645, 17360), (1736, 16450), (1880, 15190), (1960, 14570), (2170, 13160), (2303, 12400), (2350, 12152), (2450, 11656), (2480, 11515), (2632, 10850), (2800, 10199), (2914, 9800), (3038, 9400), (3100, 9212), (3290, 8680), (3472, 8225), (3760, 7595), (3920, 7285), (4340, 6580), (4606, 6200), (4700, 6076), (4900, 5828), (5264, 5425)]