668556

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{379}}^1$

素因数の和:403

約数の個数: 54

約数和(自身を含む): 1971060

約数和(自身を除く): 1302504

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 379, 441, 588, 758, 882, 1137, 1516, 1764, 2274, 2653, 3411, 4548, 5306, 6822, 7959, 10612, 13644, 15918, 18571, 23877, 31836, 37142, 47754, 55713, 74284, 95508, 111426, 167139, 222852, 334278, 668556]

約数ペア:

[(1, 668556), (2, 334278), (3, 222852), (4, 167139), (6, 111426), (7, 95508), (9, 74284), (12, 55713), (14, 47754), (18, 37142), (21, 31836), (28, 23877), (36, 18571), (42, 15918), (49, 13644), (63, 10612), (84, 7959), (98, 6822), (126, 5306), (147, 4548), (196, 3411), (252, 2653), (294, 2274), (379, 1764), (441, 1516), (588, 1137), (758, 882)]