258462080

素因数分解:

$2^7\times 5^1\times {\mathrm{431}}^1\times {\mathrm{937}}^1$

素因数の和:1387

約数の個数: 64

約数和(自身を含む): 619980480

約数和(自身を除く): 361518400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 431, 640, 862, 937, 1724, 1874, 2155, 3448, 3748, 4310, 4685, 6896, 7496, 8620, 9370, 13792, 14992, 17240, 18740, 27584, 29984, 34480, 37480, 55168, 59968, 68960, 74960, 119936, 137920, 149920, 275840, 299840, 403847, 599680, 807694, 1615388, 2019235, 3230776, 4038470, 6461552, 8076940, 12923104, 16153880, 25846208, 32307760, 51692416, 64615520, 129231040, 258462080]

約数ペア:

[(1, 258462080), (2, 129231040), (4, 64615520), (5, 51692416), (8, 32307760), (10, 25846208), (16, 16153880), (20, 12923104), (32, 8076940), (40, 6461552), (64, 4038470), (80, 3230776), (128, 2019235), (160, 1615388), (320, 807694), (431, 599680), (640, 403847), (862, 299840), (937, 275840), (1724, 149920), (1874, 137920), (2155, 119936), (3448, 74960), (3748, 68960), (4310, 59968), (4685, 55168), (6896, 37480), (7496, 34480), (8620, 29984), (9370, 27584), (13792, 18740), (14992, 17240)]