18391360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4421}}^1$

素因数の和:4451

約数の個数: 56

約数和(自身を含む): 47173896

約数和(自身を除く): 28782536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4421, 8842, 17684, 22105, 35368, 44210, 57473, 70736, 88420, 114946, 141472, 176840, 229892, 282944, 287365, 353680, 459784, 574730, 707360, 919568, 1149460, 1414720, 1839136, 2298920, 3678272, 4597840, 9195680, 18391360]

約数ペア:

[(1, 18391360), (2, 9195680), (4, 4597840), (5, 3678272), (8, 2298920), (10, 1839136), (13, 1414720), (16, 1149460), (20, 919568), (26, 707360), (32, 574730), (40, 459784), (52, 353680), (64, 287365), (65, 282944), (80, 229892), (104, 176840), (130, 141472), (160, 114946), (208, 88420), (260, 70736), (320, 57473), (416, 44210), (520, 35368), (832, 22105), (1040, 17684), (2080, 8842), (4160, 4421)]