18530408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 22112152

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 47, 52, 68, 94, 104, 136, 188, 221, 223, 376, 442, 446, 611, 799, 884, 892, 1222, 1598, 1768, 1784, 2444, 2899, 3196, 3791, 4888, 5798, 6392, 7582, 10387, 10481, 11596, 15164, 20774, 20962, 23192, 30328, 41548, 41924, 49283, 83096, 83848, 98566, 136253, 178177, 197132, 272506, 356354, 394264, 545012, 712708, 1090024, 1425416, 2316301, 4632602, 9265204, 18530408]

約数ペア:

[(1, 18530408), (2, 9265204), (4, 4632602), (8, 2316301), (13, 1425416), (17, 1090024), (26, 712708), (34, 545012), (47, 394264), (52, 356354), (68, 272506), (94, 197132), (104, 178177), (136, 136253), (188, 98566), (221, 83848), (223, 83096), (376, 49283), (442, 41924), (446, 41548), (611, 30328), (799, 23192), (884, 20962), (892, 20774), (1222, 15164), (1598, 11596), (1768, 10481), (1784, 10387), (2444, 7582), (2899, 6392), (3196, 5798), (3791, 4888)]