51552640

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{739}}^1$

素因数の和:867

約数の個数: 64

約数和(自身を含む): 124542000

約数和(自身を除く): 72989360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 436, 545, 640, 739, 872, 1090, 1478, 1744, 2180, 2956, 3488, 3695, 4360, 5912, 6976, 7390, 8720, 11824, 13952, 14780, 17440, 23648, 29560, 34880, 47296, 59120, 69760, 80551, 94592, 118240, 161102, 236480, 322204, 402755, 472960, 644408, 805510, 1288816, 1611020, 2577632, 3222040, 5155264, 6444080, 10310528, 12888160, 25776320, 51552640]

約数ペア:

[(1, 51552640), (2, 25776320), (4, 12888160), (5, 10310528), (8, 6444080), (10, 5155264), (16, 3222040), (20, 2577632), (32, 1611020), (40, 1288816), (64, 805510), (80, 644408), (109, 472960), (128, 402755), (160, 322204), (218, 236480), (320, 161102), (436, 118240), (545, 94592), (640, 80551), (739, 69760), (872, 59120), (1090, 47296), (1478, 34880), (1744, 29560), (2180, 23648), (2956, 17440), (3488, 14780), (3695, 13952), (4360, 11824), (5912, 8720), (6976, 7390)]