19805360

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6691}}^1$

素因数の和:6741

約数の個数: 40

約数和(自身を含む): 47299056

約数和(自身を除く): 27493696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6691, 13382, 26764, 33455, 53528, 66910, 107056, 133820, 247567, 267640, 495134, 535280, 990268, 1237835, 1980536, 2475670, 3961072, 4951340, 9902680, 19805360]

約数ペア:

[(1, 19805360), (2, 9902680), (4, 4951340), (5, 3961072), (8, 2475670), (10, 1980536), (16, 1237835), (20, 990268), (37, 535280), (40, 495134), (74, 267640), (80, 247567), (148, 133820), (185, 107056), (296, 66910), (370, 53528), (592, 33455), (740, 26764), (1480, 13382), (2960, 6691)]