158972840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{305717}}^1$

素因数の和:305741

約数の個数: 32

約数和(自身を含む): 385204680

約数和(自身を除く): 226231840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 305717, 611434, 1222868, 1528585, 2445736, 3057170, 3974321, 6114340, 7948642, 12228680, 15897284, 19871605, 31794568, 39743210, 79486420, 158972840]

約数ペア:

[(1, 158972840), (2, 79486420), (4, 39743210), (5, 31794568), (8, 19871605), (10, 15897284), (13, 12228680), (20, 7948642), (26, 6114340), (40, 3974321), (52, 3057170), (65, 2445736), (104, 1528585), (130, 1222868), (260, 611434), (520, 305717)]