20191160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 50133600

約数和(自身を除く): 29942440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 421, 436, 440, 545, 842, 872, 1090, 1199, 1684, 2105, 2180, 2398, 3368, 4210, 4360, 4631, 4796, 5995, 8420, 9262, 9592, 11990, 16840, 18524, 23155, 23980, 37048, 45889, 46310, 47960, 91778, 92620, 183556, 185240, 229445, 367112, 458890, 504779, 917780, 1009558, 1835560, 2019116, 2523895, 4038232, 5047790, 10095580, 20191160]

約数ペア:

[(1, 20191160), (2, 10095580), (4, 5047790), (5, 4038232), (8, 2523895), (10, 2019116), (11, 1835560), (20, 1009558), (22, 917780), (40, 504779), (44, 458890), (55, 367112), (88, 229445), (109, 185240), (110, 183556), (218, 92620), (220, 91778), (421, 47960), (436, 46310), (440, 45889), (545, 37048), (842, 23980), (872, 23155), (1090, 18524), (1199, 16840), (1684, 11990), (2105, 9592), (2180, 9262), (2398, 8420), (3368, 5995), (4210, 4796), (4360, 4631)]