20756040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{643}}^1$

素因数の和:926

約数の個数: 64

約数和(自身を含む): 62596800

約数和(自身を除く): 41840760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 269, 538, 643, 807, 1076, 1286, 1345, 1614, 1929, 2152, 2572, 2690, 3215, 3228, 3858, 4035, 5144, 5380, 6430, 6456, 7716, 8070, 9645, 10760, 12860, 15432, 16140, 19290, 25720, 32280, 38580, 77160, 172967, 345934, 518901, 691868, 864835, 1037802, 1383736, 1729670, 2075604, 2594505, 3459340, 4151208, 5189010, 6918680, 10378020, 20756040]

約数ペア:

[(1, 20756040), (2, 10378020), (3, 6918680), (4, 5189010), (5, 4151208), (6, 3459340), (8, 2594505), (10, 2075604), (12, 1729670), (15, 1383736), (20, 1037802), (24, 864835), (30, 691868), (40, 518901), (60, 345934), (120, 172967), (269, 77160), (538, 38580), (643, 32280), (807, 25720), (1076, 19290), (1286, 16140), (1345, 15432), (1614, 12860), (1929, 10760), (2152, 9645), (2572, 8070), (2690, 7716), (3215, 6456), (3228, 6430), (3858, 5380), (4035, 5144)]