123856730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^3\times {\mathrm{2521}}^1$

素因数の和:2579

約数の個数: 32

約数和(自身を含む): 236967120

約数和(自身を除く): 113110390

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2521, 2890, 4913, 5042, 9826, 12605, 24565, 25210, 42857, 49130, 85714, 214285, 428570, 728569, 1457138, 3642845, 7285690, 12385673, 24771346, 61928365, 123856730]

約数ペア:

[(1, 123856730), (2, 61928365), (5, 24771346), (10, 12385673), (17, 7285690), (34, 3642845), (85, 1457138), (170, 728569), (289, 428570), (578, 214285), (1445, 85714), (2521, 49130), (2890, 42857), (4913, 25210), (5042, 24565), (9826, 12605)]