55371100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 125269760

約数和(自身を除く): 69898660

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 79, 86, 100, 158, 163, 172, 215, 316, 326, 395, 430, 652, 790, 815, 860, 1075, 1580, 1630, 1975, 2150, 3260, 3397, 3950, 4075, 4300, 6794, 7009, 7900, 8150, 12877, 13588, 14018, 16300, 16985, 25754, 28036, 33970, 35045, 51508, 64385, 67940, 70090, 84925, 128770, 140180, 169850, 175225, 257540, 321925, 339700, 350450, 553711, 643850, 700900, 1107422, 1287700, 2214844, 2768555, 5537110, 11074220, 13842775, 27685550, 55371100]

約数ペア:

[(1, 55371100), (2, 27685550), (4, 13842775), (5, 11074220), (10, 5537110), (20, 2768555), (25, 2214844), (43, 1287700), (50, 1107422), (79, 700900), (86, 643850), (100, 553711), (158, 350450), (163, 339700), (172, 321925), (215, 257540), (316, 175225), (326, 169850), (395, 140180), (430, 128770), (652, 84925), (790, 70090), (815, 67940), (860, 64385), (1075, 51508), (1580, 35045), (1630, 33970), (1975, 28036), (2150, 25754), (3260, 16985), (3397, 16300), (3950, 14018), (4075, 13588), (4300, 12877), (6794, 8150), (7009, 7900)]