19980536

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1213}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 39333600

約数和(自身を除く): 19353064

約数列:

[1, 2, 4, 8, 29, 58, 71, 116, 142, 232, 284, 568, 1213, 2059, 2426, 4118, 4852, 8236, 9704, 16472, 35177, 70354, 86123, 140708, 172246, 281416, 344492, 688984, 2497567, 4995134, 9990268, 19980536]

約数ペア:

[(1, 19980536), (2, 9990268), (4, 4995134), (8, 2497567), (29, 688984), (58, 344492), (71, 281416), (116, 172246), (142, 140708), (232, 86123), (284, 70354), (568, 35177), (1213, 16472), (2059, 9704), (2426, 8236), (4118, 4852)]