20430915

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 13437885

約数列:

[1, 3, 5, 15, 41, 123, 139, 205, 239, 417, 615, 695, 717, 1195, 2085, 3585, 5699, 9799, 17097, 28495, 29397, 33221, 48995, 85485, 99663, 146985, 166105, 498315, 1362061, 4086183, 6810305, 20430915]

約数ペア:

[(1, 20430915), (3, 6810305), (5, 4086183), (15, 1362061), (41, 498315), (123, 166105), (139, 146985), (205, 99663), (239, 85485), (417, 48995), (615, 33221), (695, 29397), (717, 28495), (1195, 17097), (2085, 9799), (3585, 5699)]