20552440

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4547}}^1$

素因数の和:4671

約数の個数: 32

約数和(自身を含む): 46662480

約数和(自身を除く): 26110040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 4547, 9094, 18188, 22735, 36376, 45470, 90940, 181880, 513811, 1027622, 2055244, 2569055, 4110488, 5138110, 10276220, 20552440]

約数ペア:

[(1, 20552440), (2, 10276220), (4, 5138110), (5, 4110488), (8, 2569055), (10, 2055244), (20, 1027622), (40, 513811), (113, 181880), (226, 90940), (452, 45470), (565, 36376), (904, 22735), (1130, 18188), (2260, 9094), (4520, 4547)]