20185880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3529}}^1$

素因数の和:3564

約数の個数: 64

約数和(自身を含む): 53373600

約数和(自身を除く): 33187720

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, 3529, 5720, 7058, 14116, 17645, 28232, 35290, 38819, 45877, 70580, 77638, 91754, 141160, 155276, 183508, 194095, 229385, 310552, 367016, 388190, 458770, 504647, 776380, 917540, 1009294, 1552760, 1835080, 2018588, 2523235, 4037176, 5046470, 10092940, 20185880]

約数ペア:

[(1, 20185880), (2, 10092940), (4, 5046470), (5, 4037176), (8, 2523235), (10, 2018588), (11, 1835080), (13, 1552760), (20, 1009294), (22, 917540), (26, 776380), (40, 504647), (44, 458770), (52, 388190), (55, 367016), (65, 310552), (88, 229385), (104, 194095), (110, 183508), (130, 155276), (143, 141160), (220, 91754), (260, 77638), (286, 70580), (440, 45877), (520, 38819), (572, 35290), (715, 28232), (1144, 17645), (1430, 14116), (2860, 7058), (3529, 5720)]