20568680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46747}}^1$

素因数の和:46769

約数の個数: 32

約数和(自身を含む): 50487840

約数和(自身を除く): 29919160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46747, 93494, 186988, 233735, 373976, 467470, 514217, 934940, 1028434, 1869880, 2056868, 2571085, 4113736, 5142170, 10284340, 20568680]

約数ペア:

[(1, 20568680), (2, 10284340), (4, 5142170), (5, 4113736), (8, 2571085), (10, 2056868), (11, 1869880), (20, 1028434), (22, 934940), (40, 514217), (44, 467470), (55, 373976), (88, 233735), (110, 186988), (220, 93494), (440, 46747)]