7889740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 17498880

約数和(自身を除く): 9609140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 223, 244, 290, 305, 446, 580, 610, 892, 1115, 1220, 1769, 2230, 3538, 4460, 6467, 7076, 8845, 12934, 13603, 17690, 25868, 27206, 32335, 35380, 54412, 64670, 68015, 129340, 136030, 272060, 394487, 788974, 1577948, 1972435, 3944870, 7889740]

約数ペア:

[(1, 7889740), (2, 3944870), (4, 1972435), (5, 1577948), (10, 788974), (20, 394487), (29, 272060), (58, 136030), (61, 129340), (116, 68015), (122, 64670), (145, 54412), (223, 35380), (244, 32335), (290, 27206), (305, 25868), (446, 17690), (580, 13603), (610, 12934), (892, 8845), (1115, 7076), (1220, 6467), (1769, 4460), (2230, 3538)]