20404046

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 36286704

約数和(自身を除く): 15882658

約数列:

[1, 2, 13, 17, 26, 34, 53, 67, 106, 134, 169, 221, 338, 442, 689, 871, 901, 1139, 1378, 1742, 1802, 2278, 2873, 3551, 5746, 7102, 8957, 11323, 11713, 14807, 17914, 22646, 23426, 29614, 46163, 60367, 92326, 120734, 152269, 192491, 304538, 384982, 600119, 784771, 1200238, 1569542, 10202023, 20404046]

約数ペア:

[(1, 20404046), (2, 10202023), (13, 1569542), (17, 1200238), (26, 784771), (34, 600119), (53, 384982), (67, 304538), (106, 192491), (134, 152269), (169, 120734), (221, 92326), (338, 60367), (442, 46163), (689, 29614), (871, 23426), (901, 22646), (1139, 17914), (1378, 14807), (1742, 11713), (1802, 11323), (2278, 8957), (2873, 7102), (3551, 5746)]