1018820

素因数分解:

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

素因数の和:452

約数の個数: 36

約数和(自身を含む): 2357292

約数和(自身を除く): 1338472

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 421, 484, 605, 842, 1210, 1684, 2105, 2420, 4210, 4631, 8420, 9262, 18524, 23155, 46310, 50941, 92620, 101882, 203764, 254705, 509410, 1018820]

約数ペア:

[(1, 1018820), (2, 509410), (4, 254705), (5, 203764), (10, 101882), (11, 92620), (20, 50941), (22, 46310), (44, 23155), (55, 18524), (110, 9262), (121, 8420), (220, 4631), (242, 4210), (421, 2420), (484, 2105), (605, 1684), (842, 1210)]