20757750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2129}}^1$

素因数の和:2162

約数の個数: 64

約数和(自身を含む): 55823040

約数和(自身を除く): 35065290

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, 2129, 3250, 4258, 4875, 6387, 9750, 10645, 12774, 21290, 27677, 31935, 53225, 55354, 63870, 83031, 106450, 138385, 159675, 166062, 266125, 276770, 319350, 415155, 532250, 691925, 798375, 830310, 1383850, 1596750, 2075775, 3459625, 4151550, 6919250, 10378875, 20757750]

約数ペア:

[(1, 20757750), (2, 10378875), (3, 6919250), (5, 4151550), (6, 3459625), (10, 2075775), (13, 1596750), (15, 1383850), (25, 830310), (26, 798375), (30, 691925), (39, 532250), (50, 415155), (65, 319350), (75, 276770), (78, 266125), (125, 166062), (130, 159675), (150, 138385), (195, 106450), (250, 83031), (325, 63870), (375, 55354), (390, 53225), (650, 31935), (750, 27677), (975, 21290), (1625, 12774), (1950, 10645), (2129, 9750), (3250, 6387), (4258, 4875)]