90709040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{719}}^1$

素因数の和:834

約数の個数: 80

約数和(自身を含む): 224985600

約数和(自身を除く): 134276560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 83, 95, 152, 166, 190, 304, 332, 380, 415, 664, 719, 760, 830, 1328, 1438, 1520, 1577, 1660, 2876, 3154, 3320, 3595, 5752, 6308, 6640, 7190, 7885, 11504, 12616, 13661, 14380, 15770, 25232, 27322, 28760, 31540, 54644, 57520, 59677, 63080, 68305, 109288, 119354, 126160, 136610, 218576, 238708, 273220, 298385, 477416, 546440, 596770, 954832, 1092880, 1133863, 1193540, 2267726, 2387080, 4535452, 4774160, 5669315, 9070904, 11338630, 18141808, 22677260, 45354520, 90709040]

約数ペア:

[(1, 90709040), (2, 45354520), (4, 22677260), (5, 18141808), (8, 11338630), (10, 9070904), (16, 5669315), (19, 4774160), (20, 4535452), (38, 2387080), (40, 2267726), (76, 1193540), (80, 1133863), (83, 1092880), (95, 954832), (152, 596770), (166, 546440), (190, 477416), (304, 298385), (332, 273220), (380, 238708), (415, 218576), (664, 136610), (719, 126160), (760, 119354), (830, 109288), (1328, 68305), (1438, 63080), (1520, 59677), (1577, 57520), (1660, 54644), (2876, 31540), (3154, 28760), (3320, 27322), (3595, 25232), (5752, 15770), (6308, 14380), (6640, 13661), (7190, 12616), (7885, 11504)]