20874750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2141}}^1$

素因数の和:2174

約数の個数: 64

約数和(自身を含む): 56137536

約数和(自身を除く): 35262786

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, 2141, 3250, 4282, 4875, 6423, 9750, 10705, 12846, 21410, 27833, 32115, 53525, 55666, 64230, 83499, 107050, 139165, 160575, 166998, 267625, 278330, 321150, 417495, 535250, 695825, 802875, 834990, 1391650, 1605750, 2087475, 3479125, 4174950, 6958250, 10437375, 20874750]

約数ペア:

[(1, 20874750), (2, 10437375), (3, 6958250), (5, 4174950), (6, 3479125), (10, 2087475), (13, 1605750), (15, 1391650), (25, 834990), (26, 802875), (30, 695825), (39, 535250), (50, 417495), (65, 321150), (75, 278330), (78, 267625), (125, 166998), (130, 160575), (150, 139165), (195, 107050), (250, 83499), (325, 64230), (375, 55666), (390, 53525), (650, 32115), (750, 27833), (975, 21410), (1625, 12846), (1950, 10705), (2141, 9750), (3250, 6423), (4282, 4875)]