61807360

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:573

約数の個数: 72

約数和(自身を含む): 149743440

約数和(自身を除く): 87936080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 443, 545, 640, 872, 886, 1090, 1280, 1744, 1772, 2180, 2215, 3488, 3544, 4360, 4430, 6976, 7088, 8720, 8860, 13952, 14176, 17440, 17720, 27904, 28352, 34880, 35440, 48287, 56704, 69760, 70880, 96574, 113408, 139520, 141760, 193148, 241435, 283520, 386296, 482870, 567040, 772592, 965740, 1545184, 1931480, 3090368, 3862960, 6180736, 7725920, 12361472, 15451840, 30903680, 61807360]

約数ペア:

[(1, 61807360), (2, 30903680), (4, 15451840), (5, 12361472), (8, 7725920), (10, 6180736), (16, 3862960), (20, 3090368), (32, 1931480), (40, 1545184), (64, 965740), (80, 772592), (109, 567040), (128, 482870), (160, 386296), (218, 283520), (256, 241435), (320, 193148), (436, 141760), (443, 139520), (545, 113408), (640, 96574), (872, 70880), (886, 69760), (1090, 56704), (1280, 48287), (1744, 35440), (1772, 34880), (2180, 28352), (2215, 27904), (3488, 17720), (3544, 17440), (4360, 14176), (4430, 13952), (6976, 8860), (7088, 8720)]