639622850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{3067}}^1$

素因数の和:3219

約数の個数: 48

約数和(自身を含む): 1230317088

約数和(自身を除く): 590694238

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 97, 194, 215, 430, 485, 970, 1075, 2150, 2425, 3067, 4171, 4850, 6134, 8342, 15335, 20855, 30670, 41710, 76675, 104275, 131881, 153350, 208550, 263762, 297499, 594998, 659405, 1318810, 1487495, 2974990, 3297025, 6594050, 7437475, 12792457, 14874950, 25584914, 63962285, 127924570, 319811425, 639622850]

約数ペア:

[(1, 639622850), (2, 319811425), (5, 127924570), (10, 63962285), (25, 25584914), (43, 14874950), (50, 12792457), (86, 7437475), (97, 6594050), (194, 3297025), (215, 2974990), (430, 1487495), (485, 1318810), (970, 659405), (1075, 594998), (2150, 297499), (2425, 263762), (3067, 208550), (4171, 153350), (4850, 131881), (6134, 104275), (8342, 76675), (15335, 41710), (20855, 30670)]