72921680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70117}}^1$

素因数の和:70143

約数の個数: 40

約数和(自身を含む): 182587272

約数和(自身を除く): 109665592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 70117, 140234, 280468, 350585, 560936, 701170, 911521, 1121872, 1402340, 1823042, 2804680, 3646084, 4557605, 5609360, 7292168, 9115210, 14584336, 18230420, 36460840, 72921680]

約数ペア:

[(1, 72921680), (2, 36460840), (4, 18230420), (5, 14584336), (8, 9115210), (10, 7292168), (13, 5609360), (16, 4557605), (20, 3646084), (26, 2804680), (40, 1823042), (52, 1402340), (65, 1121872), (80, 911521), (104, 701170), (130, 560936), (208, 350585), (260, 280468), (520, 140234), (1040, 70117)]