720811312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{48809}}^1$

素因数の和:48901

約数の個数: 40

約数和(自身を含む): 1525214880

約数和(自身を除く): 804403568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1846, 3692, 7384, 14768, 48809, 97618, 195236, 390472, 634517, 780944, 1269034, 2538068, 3465439, 5076136, 6930878, 10152272, 13861756, 27723512, 45050707, 55447024, 90101414, 180202828, 360405656, 720811312]

約数ペア:

[(1, 720811312), (2, 360405656), (4, 180202828), (8, 90101414), (13, 55447024), (16, 45050707), (26, 27723512), (52, 13861756), (71, 10152272), (104, 6930878), (142, 5076136), (208, 3465439), (284, 2538068), (568, 1269034), (923, 780944), (1136, 634517), (1846, 390472), (3692, 195236), (7384, 97618), (14768, 48809)]