28624240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 69825888

約数和(自身を除く): 41201648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 53, 80, 86, 106, 157, 172, 212, 215, 265, 314, 344, 424, 430, 530, 628, 688, 785, 848, 860, 1060, 1256, 1570, 1720, 2120, 2279, 2512, 3140, 3440, 4240, 4558, 6280, 6751, 8321, 9116, 11395, 12560, 13502, 16642, 18232, 22790, 27004, 33284, 33755, 36464, 41605, 45580, 54008, 66568, 67510, 83210, 91160, 108016, 133136, 135020, 166420, 182320, 270040, 332840, 357803, 540080, 665680, 715606, 1431212, 1789015, 2862424, 3578030, 5724848, 7156060, 14312120, 28624240]

約数ペア:

[(1, 28624240), (2, 14312120), (4, 7156060), (5, 5724848), (8, 3578030), (10, 2862424), (16, 1789015), (20, 1431212), (40, 715606), (43, 665680), (53, 540080), (80, 357803), (86, 332840), (106, 270040), (157, 182320), (172, 166420), (212, 135020), (215, 133136), (265, 108016), (314, 91160), (344, 83210), (424, 67510), (430, 66568), (530, 54008), (628, 45580), (688, 41605), (785, 36464), (848, 33755), (860, 33284), (1060, 27004), (1256, 22790), (1570, 18232), (1720, 16642), (2120, 13502), (2279, 12560), (2512, 11395), (3140, 9116), (3440, 8321), (4240, 6751), (4558, 6280)]