40404020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 88397568

約数和(自身を除く): 47993548

約数列:

[1, 2, 4, 5, 10, 20, 47, 53, 94, 106, 188, 212, 235, 265, 470, 530, 811, 940, 1060, 1622, 2491, 3244, 4055, 4982, 8110, 9964, 12455, 16220, 24910, 38117, 42983, 49820, 76234, 85966, 152468, 171932, 190585, 214915, 381170, 429830, 762340, 859660, 2020201, 4040402, 8080804, 10101005, 20202010, 40404020]

約数ペア:

[(1, 40404020), (2, 20202010), (4, 10101005), (5, 8080804), (10, 4040402), (20, 2020201), (47, 859660), (53, 762340), (94, 429830), (106, 381170), (188, 214915), (212, 190585), (235, 171932), (265, 152468), (470, 85966), (530, 76234), (811, 49820), (940, 42983), (1060, 38117), (1622, 24910), (2491, 16220), (3244, 12455), (4055, 9964), (4982, 8110)]