789045280

素因数分解:

$2^5\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{2467}}^1$

素因数の和:4481

約数の個数: 48

約数和(自身を含む): 1865808000

約数和(自身を除く): 1076762720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1999, 2467, 3998, 4934, 7996, 9868, 9995, 12335, 15992, 19736, 19990, 24670, 31984, 39472, 39980, 49340, 63968, 78944, 79960, 98680, 159920, 197360, 319840, 394720, 4931533, 9863066, 19726132, 24657665, 39452264, 49315330, 78904528, 98630660, 157809056, 197261320, 394522640, 789045280]

約数ペア:

[(1, 789045280), (2, 394522640), (4, 197261320), (5, 157809056), (8, 98630660), (10, 78904528), (16, 49315330), (20, 39452264), (32, 24657665), (40, 19726132), (80, 9863066), (160, 4931533), (1999, 394720), (2467, 319840), (3998, 197360), (4934, 159920), (7996, 98680), (9868, 79960), (9995, 78944), (12335, 63968), (15992, 49340), (19736, 39980), (19990, 39472), (24670, 31984)]