39980080

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 160

約数和(自身を含む): 114278400

約数和(自身を除く): 74298320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 47, 49, 56, 62, 70, 80, 94, 98, 112, 124, 140, 155, 188, 196, 217, 235, 245, 248, 280, 310, 329, 343, 376, 392, 434, 470, 490, 496, 560, 620, 658, 686, 752, 784, 868, 940, 980, 1085, 1240, 1316, 1372, 1457, 1519, 1645, 1715, 1736, 1880, 1960, 2170, 2303, 2480, 2632, 2744, 2914, 3038, 3290, 3430, 3472, 3760, 3920, 4340, 4606, 5264, 5488, 5828, 6076, 6580, 6860, 7285, 7595, 8680, 9212, 10199, 10633, 11515, 11656, 12152, 13160, 13720, 14570, 15190, 16121, 17360, 18424, 20398, 21266, 23030, 23312, 24304, 26320, 27440, 29140, 30380, 32242, 36848, 40796, 42532, 46060, 50995, 53165, 58280, 60760, 64484, 71393, 80605, 81592, 85064, 92120, 101990, 106330, 116560, 121520, 128968, 142786, 161210, 163184, 170128, 184240, 203980, 212660, 257936, 285572, 322420, 356965, 407960, 425320, 499751, 571144, 644840, 713930, 815920, 850640, 999502, 1142288, 1289680, 1427860, 1999004, 2498755, 2855720, 3998008, 4997510, 5711440, 7996016, 9995020, 19990040, 39980080]

約数ペア:

[(1, 39980080), (2, 19990040), (4, 9995020), (5, 7996016), (7, 5711440), (8, 4997510), (10, 3998008), (14, 2855720), (16, 2498755), (20, 1999004), (28, 1427860), (31, 1289680), (35, 1142288), (40, 999502), (47, 850640), (49, 815920), (56, 713930), (62, 644840), (70, 571144), (80, 499751), (94, 425320), (98, 407960), (112, 356965), (124, 322420), (140, 285572), (155, 257936), (188, 212660), (196, 203980), (217, 184240), (235, 170128), (245, 163184), (248, 161210), (280, 142786), (310, 128968), (329, 121520), (343, 116560), (376, 106330), (392, 101990), (434, 92120), (470, 85064), (490, 81592), (496, 80605), (560, 71393), (620, 64484), (658, 60760), (686, 58280), (752, 53165), (784, 50995), (868, 46060), (940, 42532), (980, 40796), (1085, 36848), (1240, 32242), (1316, 30380), (1372, 29140), (1457, 27440), (1519, 26320), (1645, 24304), (1715, 23312), (1736, 23030), (1880, 21266), (1960, 20398), (2170, 18424), (2303, 17360), (2480, 16121), (2632, 15190), (2744, 14570), (2914, 13720), (3038, 13160), (3290, 12152), (3430, 11656), (3472, 11515), (3760, 10633), (3920, 10199), (4340, 9212), (4606, 8680), (5264, 7595), (5488, 7285), (5828, 6860), (6076, 6580)]