81989100.000000000

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1\times {\mathrm{1087}}^1$

素因数の和:1692

約数の個数: 32

約数和(自身を含む): 238141440

約数和(自身を除く): 123099882

約数列:

[1, 2, 3, 6, 31, 62, 93, 186, 569, 1087, 1138, 1707, 2174, 3261, 3414, 6522, 17639, 33697, 35278, 52917, 67394, 101091, 105834, 202182, 618503, 1237006, 1855509, 3711018, 19173593, 38347186, 57520779, 115041558]

約数ペア:

[(1, 115041558), (2, 57520779), (3, 38347186), (6, 19173593), (31, 3711018), (62, 1855509), (93, 1237006), (186, 618503), (569, 202182), (1087, 105834), (1138, 101091), (1707, 67394), (2174, 52917), (3261, 35278), (3414, 33697), (6522, 17639)]