18906420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24239}}^1$

素因数の和:24264

約数の個数: 48

約数和(自身を含む): 57012480

約数和(自身を除く): 38106060

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, 24239, 48478, 72717, 96956, 121195, 145434, 242390, 290868, 315107, 363585, 484780, 630214, 727170, 945321, 1260428, 1454340, 1575535, 1890642, 3151070, 3781284, 4726605, 6302140, 9453210, 18906420]

約数ペア:

[(1, 18906420), (2, 9453210), (3, 6302140), (4, 4726605), (5, 3781284), (6, 3151070), (10, 1890642), (12, 1575535), (13, 1454340), (15, 1260428), (20, 945321), (26, 727170), (30, 630214), (39, 484780), (52, 363585), (60, 315107), (65, 290868), (78, 242390), (130, 145434), (156, 121195), (195, 96956), (260, 72717), (390, 48478), (780, 24239)]