31698420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40639}}^1$

素因数の和:40664

約数の個数: 48

約数和(自身を含む): 95585280

約数和(自身を除く): 63886860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 40639, 81278, 121917, 162556, 203195, 243834, 406390, 487668, 528307, 609585, 812780, 1056614, 1219170, 1584921, 2113228, 2438340, 2641535, 3169842, 5283070, 6339684, 7924605, 10566140, 15849210, 31698420]

約数ペア:

[(1, 31698420), (2, 15849210), (3, 10566140), (4, 7924605), (5, 6339684), (6, 5283070), (10, 3169842), (12, 2641535), (13, 2438340), (15, 2113228), (20, 1584921), (26, 1219170), (30, 1056614), (39, 812780), (52, 609585), (60, 528307), (65, 487668), (78, 406390), (130, 243834), (156, 203195), (195, 162556), (260, 121917), (390, 81278), (780, 40639)]