20800690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3947}}^1$

素因数の和:4002

約数の個数: 32

約数和(自身を含む): 40932864

約数和(自身を除く): 20132174

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 3947, 5270, 7894, 19735, 39470, 67099, 122357, 134198, 244714, 335495, 611785, 670990, 1223570, 2080069, 4160138, 10400345, 20800690]

約数ペア:

[(1, 20800690), (2, 10400345), (5, 4160138), (10, 2080069), (17, 1223570), (31, 670990), (34, 611785), (62, 335495), (85, 244714), (155, 134198), (170, 122357), (310, 67099), (527, 39470), (1054, 19735), (2635, 7894), (3947, 5270)]