397741340

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{56983}}^1$

素因数の和:57341

約数の個数: 24

約数和(自身を含む): 837664800

約数和(自身を除く): 439923460

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 56983, 113966, 227932, 284915, 569830, 1139660, 19887067, 39774134, 79548268, 99435335, 198870670, 397741340]

約数ペア:

[(1, 397741340), (2, 198870670), (4, 99435335), (5, 79548268), (10, 39774134), (20, 19887067), (349, 1139660), (698, 569830), (1396, 284915), (1745, 227932), (3490, 113966), (6980, 56983)]