397163920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{134177}}^1$

素因数の和:134227

約数の個数: 40

約数和(自身を含む): 948370104

約数和(自身を除く): 551206184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 134177, 268354, 536708, 670885, 1073416, 1341770, 2146832, 2683540, 4964549, 5367080, 9929098, 10734160, 19858196, 24822745, 39716392, 49645490, 79432784, 99290980, 198581960, 397163920]

約数ペア:

[(1, 397163920), (2, 198581960), (4, 99290980), (5, 79432784), (8, 49645490), (10, 39716392), (16, 24822745), (20, 19858196), (37, 10734160), (40, 9929098), (74, 5367080), (80, 4964549), (148, 2683540), (185, 2146832), (296, 1341770), (370, 1073416), (592, 670885), (740, 536708), (1480, 268354), (2960, 134177)]