402187499

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 492011520

約数和(自身を除く): 89824021

約数列:

[1, 7, 23, 79, 103, 161, 307, 553, 721, 1817, 2149, 2369, 7061, 8137, 12719, 16583, 24253, 31621, 49427, 56959, 169771, 187151, 221347, 557819, 727283, 1310057, 2498059, 3904733, 5090981, 17486413, 57455357, 402187499]

約数ペア:

[(1, 402187499), (7, 57455357), (23, 17486413), (79, 5090981), (103, 3904733), (161, 2498059), (307, 1310057), (553, 727283), (721, 557819), (1817, 221347), (2149, 187151), (2369, 169771), (7061, 56959), (8137, 49427), (12719, 31621), (16583, 24253)]