220179780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28447}}^1$

素因数の和:28505

約数の個数: 72

約数和(自身を含む): 683434752

約数和(自身を除く): 463254972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 28447, 56894, 85341, 113788, 142235, 170682, 256023, 284470, 341364, 426705, 512046, 568940, 853410, 1024092, 1223221, 1280115, 1706820, 2446442, 2560230, 3669663, 4892884, 5120460, 6116105, 7339326, 11008989, 12232210, 14678652, 18348315, 22017978, 24464420, 36696630, 44035956, 55044945, 73393260, 110089890, 220179780]

約数ペア:

[(1, 220179780), (2, 110089890), (3, 73393260), (4, 55044945), (5, 44035956), (6, 36696630), (9, 24464420), (10, 22017978), (12, 18348315), (15, 14678652), (18, 12232210), (20, 11008989), (30, 7339326), (36, 6116105), (43, 5120460), (45, 4892884), (60, 3669663), (86, 2560230), (90, 2446442), (129, 1706820), (172, 1280115), (180, 1223221), (215, 1024092), (258, 853410), (387, 568940), (430, 512046), (516, 426705), (645, 341364), (774, 284470), (860, 256023), (1290, 170682), (1548, 142235), (1935, 113788), (2580, 85341), (3870, 56894), (7740, 28447)]