81077520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{677}}^1$

素因数の和:1192

約数の個数: 80

約数和(自身を含む): 252216000

約数和(自身を除く): 171138480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 499, 677, 998, 1354, 1497, 1996, 2031, 2495, 2708, 2994, 3385, 3992, 4062, 4990, 5416, 5988, 6770, 7485, 7984, 8124, 9980, 10155, 10832, 11976, 13540, 14970, 16248, 19960, 20310, 23952, 27080, 29940, 32496, 39920, 40620, 54160, 59880, 81240, 119760, 162480, 337823, 675646, 1013469, 1351292, 1689115, 2026938, 2702584, 3378230, 4053876, 5067345, 5405168, 6756460, 8107752, 10134690, 13512920, 16215504, 20269380, 27025840, 40538760, 81077520]

約数ペア:

[(1, 81077520), (2, 40538760), (3, 27025840), (4, 20269380), (5, 16215504), (6, 13512920), (8, 10134690), (10, 8107752), (12, 6756460), (15, 5405168), (16, 5067345), (20, 4053876), (24, 3378230), (30, 2702584), (40, 2026938), (48, 1689115), (60, 1351292), (80, 1013469), (120, 675646), (240, 337823), (499, 162480), (677, 119760), (998, 81240), (1354, 59880), (1497, 54160), (1996, 40620), (2031, 39920), (2495, 32496), (2708, 29940), (2994, 27080), (3385, 23952), (3992, 20310), (4062, 19960), (4990, 16248), (5416, 14970), (5988, 13540), (6770, 11976), (7485, 10832), (7984, 10155), (8124, 9980)]