20178390850

素因数分解:

$2^1\times 5^2\times {\mathrm{1019}}^1\times {\mathrm{396043}}^1$

素因数の和:397074

約数の個数: 24

約数和(自身を含む): 37568733840

約数和(自身を除く): 17390342990

約数列:

[1, 2, 5, 10, 25, 50, 1019, 2038, 5095, 10190, 25475, 50950, 396043, 792086, 1980215, 3960430, 9901075, 19802150, 403567817, 807135634, 2017839085, 4035678170, 10089195425, 20178390850]

約数ペア:

[(1, 20178390850), (2, 10089195425), (5, 4035678170), (10, 2017839085), (25, 807135634), (50, 403567817), (1019, 19802150), (2038, 9901075), (5095, 3960430), (10190, 1980215), (25475, 792086), (50950, 396043)]