2871220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 6806016

約数和(自身を除く): 3934796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 421, 620, 682, 842, 1364, 1684, 1705, 2105, 3410, 4210, 4631, 6820, 8420, 9262, 13051, 18524, 23155, 26102, 46310, 52204, 65255, 92620, 130510, 143561, 261020, 287122, 574244, 717805, 1435610, 2871220]

約数ペア:

[(1, 2871220), (2, 1435610), (4, 717805), (5, 574244), (10, 287122), (11, 261020), (20, 143561), (22, 130510), (31, 92620), (44, 65255), (55, 52204), (62, 46310), (110, 26102), (124, 23155), (155, 18524), (220, 13051), (310, 9262), (341, 8420), (421, 6820), (620, 4631), (682, 4210), (842, 3410), (1364, 2105), (1684, 1705)]