81047580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2707}}^1$

素因数の和:3218

約数の個数: 48

約数和(自身を含む): 227472000

約数和(自身を除く): 146424420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 499, 998, 1497, 1996, 2495, 2707, 2994, 4990, 5414, 5988, 7485, 8121, 9980, 10828, 13535, 14970, 16242, 27070, 29940, 32484, 40605, 54140, 81210, 162420, 1350793, 2701586, 4052379, 5403172, 6753965, 8104758, 13507930, 16209516, 20261895, 27015860, 40523790, 81047580]

約数ペア:

[(1, 81047580), (2, 40523790), (3, 27015860), (4, 20261895), (5, 16209516), (6, 13507930), (10, 8104758), (12, 6753965), (15, 5403172), (20, 4052379), (30, 2701586), (60, 1350793), (499, 162420), (998, 81210), (1497, 54140), (1996, 40605), (2495, 32484), (2707, 29940), (2994, 27070), (4990, 16242), (5414, 14970), (5988, 13535), (7485, 10828), (8121, 9980)]