389920402700

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{49357013}}^1$

素因数の和:49357106

約数の個数: 36

約数和(自身を含む): 856837763040

約数和(自身を除く): 466917360340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 3950, 7900, 49357013, 98714026, 197428052, 246785065, 493570130, 987140260, 1233925325, 2467850650, 3899204027, 4935701300, 7798408054, 15596816108, 19496020135, 38992040270, 77984080540, 97480100675, 194960201350, 389920402700]

約数ペア:

[(1, 389920402700), (2, 194960201350), (4, 97480100675), (5, 77984080540), (10, 38992040270), (20, 19496020135), (25, 15596816108), (50, 7798408054), (79, 4935701300), (100, 3899204027), (158, 2467850650), (316, 1233925325), (395, 987140260), (790, 493570130), (1580, 246785065), (1975, 197428052), (3950, 98714026), (7900, 49357013)]