261125810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 525312000

約数和(自身を除く): 264186190

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 151, 158, 199, 302, 395, 398, 755, 790, 869, 995, 1510, 1661, 1738, 1990, 2189, 3322, 4345, 4378, 8305, 8690, 10945, 11929, 15721, 16610, 21890, 23858, 30049, 31442, 59645, 60098, 78605, 119290, 131219, 150245, 157210, 172931, 262438, 300490, 330539, 345862, 656095, 661078, 864655, 1312190, 1652695, 1729310, 2373871, 3305390, 4747742, 11869355, 23738710, 26112581, 52225162, 130562905, 261125810]

約数ペア:

[(1, 261125810), (2, 130562905), (5, 52225162), (10, 26112581), (11, 23738710), (22, 11869355), (55, 4747742), (79, 3305390), (110, 2373871), (151, 1729310), (158, 1652695), (199, 1312190), (302, 864655), (395, 661078), (398, 656095), (755, 345862), (790, 330539), (869, 300490), (995, 262438), (1510, 172931), (1661, 157210), (1738, 150245), (1990, 131219), (2189, 119290), (3322, 78605), (4345, 60098), (4378, 59645), (8305, 31442), (8690, 30049), (10945, 23858), (11929, 21890), (15721, 16610)]