20694304

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 43659000

約数和(自身を除く): 22964696

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 109, 136, 218, 272, 349, 436, 544, 698, 872, 1396, 1744, 1853, 2792, 3488, 3706, 5584, 5933, 7412, 11168, 11866, 14824, 23732, 29648, 38041, 47464, 59296, 76082, 94928, 152164, 189856, 304328, 608656, 646697, 1217312, 1293394, 2586788, 5173576, 10347152, 20694304]

約数ペア:

[(1, 20694304), (2, 10347152), (4, 5173576), (8, 2586788), (16, 1293394), (17, 1217312), (32, 646697), (34, 608656), (68, 304328), (109, 189856), (136, 152164), (218, 94928), (272, 76082), (349, 59296), (436, 47464), (544, 38041), (698, 29648), (872, 23732), (1396, 14824), (1744, 11866), (1853, 11168), (2792, 7412), (3488, 5933), (3706, 5584)]