30208880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:994

約数の個数: 80

約数和(自身を含む): 78161664

約数和(自身を除く): 47952784

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 937, 1040, 1240, 1612, 1874, 2015, 2480, 3224, 3748, 4030, 4685, 6448, 7496, 8060, 9370, 12181, 14992, 16120, 18740, 24362, 29047, 32240, 37480, 48724, 58094, 60905, 74960, 97448, 116188, 121810, 145235, 194896, 232376, 243620, 290470, 377611, 464752, 487240, 580940, 755222, 974480, 1161880, 1510444, 1888055, 2323760, 3020888, 3776110, 6041776, 7552220, 15104440, 30208880]

約数ペア:

[(1, 30208880), (2, 15104440), (4, 7552220), (5, 6041776), (8, 3776110), (10, 3020888), (13, 2323760), (16, 1888055), (20, 1510444), (26, 1161880), (31, 974480), (40, 755222), (52, 580940), (62, 487240), (65, 464752), (80, 377611), (104, 290470), (124, 243620), (130, 232376), (155, 194896), (208, 145235), (248, 121810), (260, 116188), (310, 97448), (403, 74960), (496, 60905), (520, 58094), (620, 48724), (806, 37480), (937, 32240), (1040, 29047), (1240, 24362), (1612, 18740), (1874, 16120), (2015, 14992), (2480, 12181), (3224, 9370), (3748, 8060), (4030, 7496), (4685, 6448)]