18640416

素因数分解:

$2^5\times 3^1\times {\mathrm{281}}^1\times {\mathrm{691}}^1$

素因数の和:985

約数の個数: 48

約数和(自身を含む): 49176288

約数和(自身を除く): 30535872

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 281, 562, 691, 843, 1124, 1382, 1686, 2073, 2248, 2764, 3372, 4146, 4496, 5528, 6744, 8292, 8992, 11056, 13488, 16584, 22112, 26976, 33168, 66336, 194171, 388342, 582513, 776684, 1165026, 1553368, 2330052, 3106736, 4660104, 6213472, 9320208, 18640416]

約数ペア:

[(1, 18640416), (2, 9320208), (3, 6213472), (4, 4660104), (6, 3106736), (8, 2330052), (12, 1553368), (16, 1165026), (24, 776684), (32, 582513), (48, 388342), (96, 194171), (281, 66336), (562, 33168), (691, 26976), (843, 22112), (1124, 16584), (1382, 13488), (1686, 11056), (2073, 8992), (2248, 8292), (2764, 6744), (3372, 5528), (4146, 4496)]