20512019985

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1\times {\mathrm{55249}}^1$

素因数の和:55777

約数の個数: 32

約数和(自身を含む): 33510672000

約数和(自身を除く): 12998652015

約数列:

[1, 3, 5, 15, 53, 159, 265, 467, 795, 1401, 2335, 7005, 24751, 55249, 74253, 123755, 165747, 276245, 371265, 828735, 2928197, 8784591, 14640985, 25801283, 43922955, 77403849, 129006415, 387019245, 1367467999, 4102403997, 6837339995, 20512019985]

約数ペア:

[(1, 20512019985), (3, 6837339995), (5, 4102403997), (15, 1367467999), (53, 387019245), (159, 129006415), (265, 77403849), (467, 43922955), (795, 25801283), (1401, 14640985), (2335, 8784591), (7005, 2928197), (24751, 828735), (55249, 371265), (74253, 276245), (123755, 165747)]