8159740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 18295200

約数和(自身を除く): 10135460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 197, 218, 380, 394, 436, 545, 788, 985, 1090, 1970, 2071, 2180, 3743, 3940, 4142, 7486, 8284, 10355, 14972, 18715, 20710, 21473, 37430, 41420, 42946, 74860, 85892, 107365, 214730, 407987, 429460, 815974, 1631948, 2039935, 4079870, 8159740]

約数ペア:

[(1, 8159740), (2, 4079870), (4, 2039935), (5, 1631948), (10, 815974), (19, 429460), (20, 407987), (38, 214730), (76, 107365), (95, 85892), (109, 74860), (190, 42946), (197, 41420), (218, 37430), (380, 21473), (394, 20710), (436, 18715), (545, 14972), (788, 10355), (985, 8284), (1090, 7486), (1970, 4142), (2071, 3940), (2180, 3743)]