80864721

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{307}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 138762624

約数和(自身を除く): 57897903

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 113, 259, 307, 333, 339, 777, 791, 921, 1017, 2149, 2331, 2373, 2763, 4181, 6447, 7119, 11359, 12543, 19341, 29267, 34077, 34691, 37629, 79513, 87801, 102231, 104073, 238539, 242837, 263403, 312219, 715617, 728511, 1283567, 2185533, 3850701, 8984969, 11552103, 26954907, 80864721]

約数ペア:

[(1, 80864721), (3, 26954907), (7, 11552103), (9, 8984969), (21, 3850701), (37, 2185533), (63, 1283567), (111, 728511), (113, 715617), (259, 312219), (307, 263403), (333, 242837), (339, 238539), (777, 104073), (791, 102231), (921, 87801), (1017, 79513), (2149, 37629), (2331, 34691), (2373, 34077), (2763, 29267), (4181, 19341), (6447, 12543), (7119, 11359)]