639651701

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{761}}^1$

素因数の和:917

約数の個数: 32

約数和(自身を含む): 752734080

約数和(自身を除く): 113082379

約数列:

[1, 13, 19, 41, 83, 247, 533, 761, 779, 1079, 1577, 3403, 9893, 10127, 14459, 20501, 31201, 44239, 63163, 64657, 187967, 405613, 592819, 821119, 840541, 1200097, 2589683, 7706647, 15601261, 33665879, 49203977, 639651701]

約数ペア:

[(1, 639651701), (13, 49203977), (19, 33665879), (41, 15601261), (83, 7706647), (247, 2589683), (533, 1200097), (761, 840541), (779, 821119), (1079, 592819), (1577, 405613), (3403, 187967), (9893, 64657), (10127, 63163), (14459, 44239), (20501, 31201)]