78491920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1063}}^1$

素因数の和:1160

約数の個数: 80

約数和(自身を含む): 199487232

約数和(自身を除く): 120995312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 208, 260, 284, 355, 520, 568, 710, 923, 1040, 1063, 1136, 1420, 1846, 2126, 2840, 3692, 4252, 4615, 5315, 5680, 7384, 8504, 9230, 10630, 13819, 14768, 17008, 18460, 21260, 27638, 36920, 42520, 55276, 69095, 73840, 75473, 85040, 110552, 138190, 150946, 221104, 276380, 301892, 377365, 552760, 603784, 754730, 981149, 1105520, 1207568, 1509460, 1962298, 3018920, 3924596, 4905745, 6037840, 7849192, 9811490, 15698384, 19622980, 39245960, 78491920]

約数ペア:

[(1, 78491920), (2, 39245960), (4, 19622980), (5, 15698384), (8, 9811490), (10, 7849192), (13, 6037840), (16, 4905745), (20, 3924596), (26, 3018920), (40, 1962298), (52, 1509460), (65, 1207568), (71, 1105520), (80, 981149), (104, 754730), (130, 603784), (142, 552760), (208, 377365), (260, 301892), (284, 276380), (355, 221104), (520, 150946), (568, 138190), (710, 110552), (923, 85040), (1040, 75473), (1063, 73840), (1136, 69095), (1420, 55276), (1846, 42520), (2126, 36920), (2840, 27638), (3692, 21260), (4252, 18460), (4615, 17008), (5315, 14768), (5680, 13819), (7384, 10630), (8504, 9230)]