399684674

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{769}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 633346560

約数和(自身を除く): 233661886

約数列:

[1, 2, 31, 62, 83, 101, 166, 202, 769, 1538, 2573, 3131, 5146, 6262, 8383, 16766, 23839, 47678, 63827, 77669, 127654, 155338, 259873, 519746, 1978637, 2407739, 3957274, 4815478, 6446527, 12893054, 199842337, 399684674]

約数ペア:

[(1, 399684674), (2, 199842337), (31, 12893054), (62, 6446527), (83, 4815478), (101, 3957274), (166, 2407739), (202, 1978637), (769, 519746), (1538, 259873), (2573, 155338), (3131, 127654), (5146, 77669), (6262, 63827), (8383, 47678), (16766, 23839)]