81209388

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{4099}}^1$

素因数の和:4246

約数の個数: 48

約数和(自身を含む): 205721600

約数和(自身を除く): 124512212

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 127, 156, 254, 381, 508, 762, 1524, 1651, 3302, 4099, 4953, 6604, 8198, 9906, 12297, 16396, 19812, 24594, 49188, 53287, 106574, 159861, 213148, 319722, 520573, 639444, 1041146, 1561719, 2082292, 3123438, 6246876, 6767449, 13534898, 20302347, 27069796, 40604694, 81209388]

約数ペア:

[(1, 81209388), (2, 40604694), (3, 27069796), (4, 20302347), (6, 13534898), (12, 6767449), (13, 6246876), (26, 3123438), (39, 2082292), (52, 1561719), (78, 1041146), (127, 639444), (156, 520573), (254, 319722), (381, 213148), (508, 159861), (762, 106574), (1524, 53287), (1651, 49188), (3302, 24594), (4099, 19812), (4953, 16396), (6604, 12297), (8198, 9906)]