81105856

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1373}}^1$

素因数の和:1469

約数の個数: 56

約数和(自身を含む): 175893984

約数和(自身を除く): 94788128

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 142, 208, 284, 416, 568, 832, 923, 1136, 1373, 1846, 2272, 2746, 3692, 4544, 5492, 7384, 10984, 14768, 17849, 21968, 29536, 35698, 43936, 59072, 71396, 87872, 97483, 142792, 194966, 285584, 389932, 571168, 779864, 1142336, 1267279, 1559728, 2534558, 3119456, 5069116, 6238912, 10138232, 20276464, 40552928, 81105856]

約数ペア:

[(1, 81105856), (2, 40552928), (4, 20276464), (8, 10138232), (13, 6238912), (16, 5069116), (26, 3119456), (32, 2534558), (52, 1559728), (64, 1267279), (71, 1142336), (104, 779864), (142, 571168), (208, 389932), (284, 285584), (416, 194966), (568, 142792), (832, 97483), (923, 87872), (1136, 71396), (1373, 59072), (1846, 43936), (2272, 35698), (2746, 29536), (3692, 21968), (4544, 17849), (5492, 14768), (7384, 10984)]