89439740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{821}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 203001120

約数和(自身を除く): 113561380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 419, 821, 838, 1642, 1676, 2095, 3284, 4105, 4190, 5447, 8210, 8380, 10673, 10894, 16420, 21346, 21788, 27235, 42692, 53365, 54470, 106730, 108940, 213460, 343999, 687998, 1375996, 1719995, 3439990, 4471987, 6879980, 8943974, 17887948, 22359935, 44719870, 89439740]

約数ペア:

[(1, 89439740), (2, 44719870), (4, 22359935), (5, 17887948), (10, 8943974), (13, 6879980), (20, 4471987), (26, 3439990), (52, 1719995), (65, 1375996), (130, 687998), (260, 343999), (419, 213460), (821, 108940), (838, 106730), (1642, 54470), (1676, 53365), (2095, 42692), (3284, 27235), (4105, 21788), (4190, 21346), (5447, 16420), (8210, 10894), (8380, 10673)]