20613160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12569}}^1$

素因数の和:12621

約数の個数: 32

約数和(自身を含む): 47514600

約数和(自身を除く): 26901440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12569, 25138, 50276, 62845, 100552, 125690, 251380, 502760, 515329, 1030658, 2061316, 2576645, 4122632, 5153290, 10306580, 20613160]

約数ペア:

[(1, 20613160), (2, 10306580), (4, 5153290), (5, 4122632), (8, 2576645), (10, 2061316), (20, 1030658), (40, 515329), (41, 502760), (82, 251380), (164, 125690), (205, 100552), (328, 62845), (410, 50276), (820, 25138), (1640, 12569)]