61920640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3121}}^1$

素因数の和:3171

約数の個数: 64

約数和(自身を含む): 152853120

約数和(自身を除く): 90932480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3121, 3968, 4960, 6242, 9920, 12484, 15605, 19840, 24968, 31210, 49936, 62420, 96751, 99872, 124840, 193502, 199744, 249680, 387004, 399488, 483755, 499360, 774008, 967510, 998720, 1548016, 1935020, 1997440, 3096032, 3870040, 6192064, 7740080, 12384128, 15480160, 30960320, 61920640]

約数ペア:

[(1, 61920640), (2, 30960320), (4, 15480160), (5, 12384128), (8, 7740080), (10, 6192064), (16, 3870040), (20, 3096032), (31, 1997440), (32, 1935020), (40, 1548016), (62, 998720), (64, 967510), (80, 774008), (124, 499360), (128, 483755), (155, 399488), (160, 387004), (248, 249680), (310, 199744), (320, 193502), (496, 124840), (620, 99872), (640, 96751), (992, 62420), (1240, 49936), (1984, 31210), (2480, 24968), (3121, 19840), (3968, 15605), (4960, 12484), (6242, 9920)]