720888931

素因数分解:

$7^3\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:233

約数の個数: 48

約数和(自身を含む): 915768000

約数和(自身を除く): 194879069

約数列:

[1, 7, 23, 29, 49, 137, 161, 203, 343, 529, 667, 959, 1127, 1421, 3151, 3703, 3973, 4669, 6713, 7889, 9947, 15341, 22057, 25921, 27811, 32683, 46991, 72473, 91379, 107387, 154399, 181447, 194677, 228781, 507311, 639653, 751709, 1080793, 1362739, 2101717, 3551177, 4477571, 5261963, 14712019, 24858239, 31342997, 102984133, 720888931]

約数ペア:

[(1, 720888931), (7, 102984133), (23, 31342997), (29, 24858239), (49, 14712019), (137, 5261963), (161, 4477571), (203, 3551177), (343, 2101717), (529, 1362739), (667, 1080793), (959, 751709), (1127, 639653), (1421, 507311), (3151, 228781), (3703, 194677), (3973, 181447), (4669, 154399), (6713, 107387), (7889, 91379), (9947, 72473), (15341, 46991), (22057, 32683), (25921, 27811)]