55860440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{691}}^1$

素因数の和:792

約数の個数: 64

約数和(自身を含む): 131535360

約数和(自身を除く): 75674920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 691, 860, 940, 1382, 1720, 1880, 2021, 2764, 3455, 4042, 5528, 6910, 8084, 10105, 13820, 16168, 20210, 27640, 29713, 32477, 40420, 59426, 64954, 80840, 118852, 129908, 148565, 162385, 237704, 259816, 297130, 324770, 594260, 649540, 1188520, 1299080, 1396511, 2793022, 5586044, 6982555, 11172088, 13965110, 27930220, 55860440]

約数ペア:

[(1, 55860440), (2, 27930220), (4, 13965110), (5, 11172088), (8, 6982555), (10, 5586044), (20, 2793022), (40, 1396511), (43, 1299080), (47, 1188520), (86, 649540), (94, 594260), (172, 324770), (188, 297130), (215, 259816), (235, 237704), (344, 162385), (376, 148565), (430, 129908), (470, 118852), (691, 80840), (860, 64954), (940, 59426), (1382, 40420), (1720, 32477), (1880, 29713), (2021, 27640), (2764, 20210), (3455, 16168), (4042, 13820), (5528, 10105), (6910, 8084)]