1640291250

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{33647}}^1$

素因数の和:33685

約数の個数: 80

約数和(自身を含む): 4414886784

約数和(自身を除く): 2774595534

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, 625, 650, 750, 975, 1250, 1625, 1875, 1950, 3250, 3750, 4875, 8125, 9750, 16250, 24375, 33647, 48750, 67294, 100941, 168235, 201882, 336470, 437411, 504705, 841175, 874822, 1009410, 1312233, 1682350, 2187055, 2523525, 2624466, 4205875, 4374110, 5047050, 6561165, 8411750, 10935275, 12617625, 13122330, 21029375, 21870550, 25235250, 32805825, 42058750, 54676375, 63088125, 65611650, 109352750, 126176250, 164029125, 273381875, 328058250, 546763750, 820145625, 1640291250]

約数ペア:

[(1, 1640291250), (2, 820145625), (3, 546763750), (5, 328058250), (6, 273381875), (10, 164029125), (13, 126176250), (15, 109352750), (25, 65611650), (26, 63088125), (30, 54676375), (39, 42058750), (50, 32805825), (65, 25235250), (75, 21870550), (78, 21029375), (125, 13122330), (130, 12617625), (150, 10935275), (195, 8411750), (250, 6561165), (325, 5047050), (375, 4374110), (390, 4205875), (625, 2624466), (650, 2523525), (750, 2187055), (975, 1682350), (1250, 1312233), (1625, 1009410), (1875, 874822), (1950, 841175), (3250, 504705), (3750, 437411), (4875, 336470), (8125, 201882), (9750, 168235), (16250, 100941), (24375, 67294), (33647, 48750)]