289489840

素因数分解:

$2^4\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{3329}}^1$

素因数の和:4429

約数の個数: 40

約数和(自身を含む): 673885440

約数和(自身を除く): 384395600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1087, 2174, 3329, 4348, 5435, 6658, 8696, 10870, 13316, 16645, 17392, 21740, 26632, 33290, 43480, 53264, 66580, 86960, 133160, 266320, 3618623, 7237246, 14474492, 18093115, 28948984, 36186230, 57897968, 72372460, 144744920, 289489840]

約数ペア:

[(1, 289489840), (2, 144744920), (4, 72372460), (5, 57897968), (8, 36186230), (10, 28948984), (16, 18093115), (20, 14474492), (40, 7237246), (80, 3618623), (1087, 266320), (2174, 133160), (3329, 86960), (4348, 66580), (5435, 53264), (6658, 43480), (8696, 33290), (10870, 26632), (13316, 21740), (16645, 17392)]