12686780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10399}}^1$

素因数の和:10469

約数の個数: 24

約数和(自身を含む): 27081600

約数和(自身を除く): 14394820

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 10399, 20798, 41596, 51995, 103990, 207980, 634339, 1268678, 2537356, 3171695, 6343390, 12686780]

約数ペア:

[(1, 12686780), (2, 6343390), (4, 3171695), (5, 2537356), (10, 1268678), (20, 634339), (61, 207980), (122, 103990), (244, 51995), (305, 41596), (610, 20798), (1220, 10399)]