255968

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:450

約数の個数: 24

約数和(自身を含む): 531720

約数和(自身を除く): 275752

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 421, 608, 842, 1684, 3368, 6736, 7999, 13472, 15998, 31996, 63992, 127984, 255968]

約数ペア:

[(1, 255968), (2, 127984), (4, 63992), (8, 31996), (16, 15998), (19, 13472), (32, 7999), (38, 6736), (76, 3368), (152, 1684), (304, 842), (421, 608)]