20014280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3499}}^1$

素因数の和:3534

約数の個数: 64

約数和(自身を含む): 52920000

約数和(自身を除く): 32905720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3499, 5720, 6998, 13996, 17495, 27992, 34990, 38489, 45487, 69980, 76978, 90974, 139960, 153956, 181948, 192445, 227435, 307912, 363896, 384890, 454870, 500357, 769780, 909740, 1000714, 1539560, 1819480, 2001428, 2501785, 4002856, 5003570, 10007140, 20014280]

約数ペア:

[(1, 20014280), (2, 10007140), (4, 5003570), (5, 4002856), (8, 2501785), (10, 2001428), (11, 1819480), (13, 1539560), (20, 1000714), (22, 909740), (26, 769780), (40, 500357), (44, 454870), (52, 384890), (55, 363896), (65, 307912), (88, 227435), (104, 192445), (110, 181948), (130, 153956), (143, 139960), (220, 90974), (260, 76978), (286, 69980), (440, 45487), (520, 38489), (572, 34990), (715, 27992), (1144, 17495), (1430, 13996), (2860, 6998), (3499, 5720)]