20154862

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 39682944

約数和(自身を除く): 19528082

約数列:

[1, 2, 7, 13, 14, 26, 37, 41, 73, 74, 82, 91, 146, 182, 259, 287, 481, 511, 518, 533, 574, 949, 962, 1022, 1066, 1517, 1898, 2701, 2993, 3034, 3367, 3731, 5402, 5986, 6643, 6734, 7462, 10619, 13286, 18907, 19721, 20951, 21238, 35113, 37814, 38909, 39442, 41902, 70226, 77818, 110741, 138047, 221482, 245791, 272363, 276094, 491582, 544726, 775187, 1439633, 1550374, 2879266, 10077431, 20154862]

約数ペア:

[(1, 20154862), (2, 10077431), (7, 2879266), (13, 1550374), (14, 1439633), (26, 775187), (37, 544726), (41, 491582), (73, 276094), (74, 272363), (82, 245791), (91, 221482), (146, 138047), (182, 110741), (259, 77818), (287, 70226), (481, 41902), (511, 39442), (518, 38909), (533, 37814), (574, 35113), (949, 21238), (962, 20951), (1022, 19721), (1066, 18907), (1517, 13286), (1898, 10619), (2701, 7462), (2993, 6734), (3034, 6643), (3367, 5986), (3731, 5402)]