201731240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{63839}}^1$

素因数の和:63929

約数の個数: 32

約数和(自身を含む): 459648000

約数和(自身を除く): 257916760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 63839, 127678, 255356, 319195, 510712, 638390, 1276780, 2553560, 5043281, 10086562, 20173124, 25216405, 40346248, 50432810, 100865620, 201731240]

約数ペア:

[(1, 201731240), (2, 100865620), (4, 50432810), (5, 40346248), (8, 25216405), (10, 20173124), (20, 10086562), (40, 5043281), (79, 2553560), (158, 1276780), (316, 638390), (395, 510712), (632, 319195), (790, 255356), (1580, 127678), (3160, 63839)]