2560650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:455

約数の個数: 48

約数和(自身を含む): 6514464

約数和(自身を除く): 3953814

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 129, 150, 215, 258, 397, 430, 645, 794, 1075, 1191, 1290, 1985, 2150, 2382, 3225, 3970, 5955, 6450, 9925, 11910, 17071, 19850, 29775, 34142, 51213, 59550, 85355, 102426, 170710, 256065, 426775, 512130, 853550, 1280325, 2560650]

約数ペア:

[(1, 2560650), (2, 1280325), (3, 853550), (5, 512130), (6, 426775), (10, 256065), (15, 170710), (25, 102426), (30, 85355), (43, 59550), (50, 51213), (75, 34142), (86, 29775), (129, 19850), (150, 17071), (215, 11910), (258, 9925), (397, 6450), (430, 5955), (645, 3970), (794, 3225), (1075, 2382), (1191, 2150), (1290, 1985)]