123614720

素因数分解:

$2^9\times 5^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:575

約数の個数: 80

約数和(自身を含む): 299779920

約数和(自身を除く): 176165200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 443, 512, 545, 640, 872, 886, 1090, 1280, 1744, 1772, 2180, 2215, 2560, 3488, 3544, 4360, 4430, 6976, 7088, 8720, 8860, 13952, 14176, 17440, 17720, 27904, 28352, 34880, 35440, 48287, 55808, 56704, 69760, 70880, 96574, 113408, 139520, 141760, 193148, 226816, 241435, 279040, 283520, 386296, 482870, 567040, 772592, 965740, 1134080, 1545184, 1931480, 3090368, 3862960, 6180736, 7725920, 12361472, 15451840, 24722944, 30903680, 61807360, 123614720]

約数ペア:

[(1, 123614720), (2, 61807360), (4, 30903680), (5, 24722944), (8, 15451840), (10, 12361472), (16, 7725920), (20, 6180736), (32, 3862960), (40, 3090368), (64, 1931480), (80, 1545184), (109, 1134080), (128, 965740), (160, 772592), (218, 567040), (256, 482870), (320, 386296), (436, 283520), (443, 279040), (512, 241435), (545, 226816), (640, 193148), (872, 141760), (886, 139520), (1090, 113408), (1280, 96574), (1744, 70880), (1772, 69760), (2180, 56704), (2215, 55808), (2560, 48287), (3488, 35440), (3544, 34880), (4360, 28352), (4430, 27904), (6976, 17720), (7088, 17440), (8720, 14176), (8860, 13952)]