20777250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2131}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 55875456

約数和(自身を除く): 35098206

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 2131, 3250, 4262, 4875, 6393, 9750, 10655, 12786, 21310, 27703, 31965, 53275, 55406, 63930, 83109, 106550, 138515, 159825, 166218, 266375, 277030, 319650, 415545, 532750, 692575, 799125, 831090, 1385150, 1598250, 2077725, 3462875, 4155450, 6925750, 10388625, 20777250]

約数ペア:

[(1, 20777250), (2, 10388625), (3, 6925750), (5, 4155450), (6, 3462875), (10, 2077725), (13, 1598250), (15, 1385150), (25, 831090), (26, 799125), (30, 692575), (39, 532750), (50, 415545), (65, 319650), (75, 277030), (78, 266375), (125, 166218), (130, 159825), (150, 138515), (195, 106550), (250, 83109), (325, 63930), (375, 55406), (390, 53275), (650, 31965), (750, 27703), (975, 21310), (1625, 12786), (1950, 10655), (2131, 9750), (3250, 6393), (4262, 4875)]