279939960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1999}}^1$

素因数の和:2405

約数の個数: 96

約数和(自身を含む): 912600000

約数和(自身を除く): 632660040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 389, 778, 1167, 1556, 1945, 1999, 2334, 3112, 3501, 3890, 3998, 4668, 5835, 5997, 7002, 7780, 7996, 9336, 9995, 11670, 11994, 14004, 15560, 15992, 17505, 17991, 19990, 23340, 23988, 28008, 29985, 35010, 35982, 39980, 46680, 47976, 59970, 70020, 71964, 79960, 89955, 119940, 140040, 143928, 179910, 239880, 359820, 719640, 777611, 1555222, 2332833, 3110444, 3888055, 4665666, 6220888, 6998499, 7776110, 9331332, 11664165, 13996998, 15552220, 18662664, 23328330, 27993996, 31104440, 34992495, 46656660, 55987992, 69984990, 93313320, 139969980, 279939960]

約数ペア:

[(1, 279939960), (2, 139969980), (3, 93313320), (4, 69984990), (5, 55987992), (6, 46656660), (8, 34992495), (9, 31104440), (10, 27993996), (12, 23328330), (15, 18662664), (18, 15552220), (20, 13996998), (24, 11664165), (30, 9331332), (36, 7776110), (40, 6998499), (45, 6220888), (60, 4665666), (72, 3888055), (90, 3110444), (120, 2332833), (180, 1555222), (360, 777611), (389, 719640), (778, 359820), (1167, 239880), (1556, 179910), (1945, 143928), (1999, 140040), (2334, 119940), (3112, 89955), (3501, 79960), (3890, 71964), (3998, 70020), (4668, 59970), (5835, 47976), (5997, 46680), (7002, 39980), (7780, 35982), (7996, 35010), (9336, 29985), (9995, 28008), (11670, 23988), (11994, 23340), (14004, 19990), (15560, 17991), (15992, 17505)]