131431455

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{443}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 241038720

約数和(自身を除く): 109607265

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 347, 443, 855, 1041, 1329, 1735, 2215, 3123, 3987, 5205, 6593, 6645, 8417, 15615, 19779, 19935, 25251, 32965, 42085, 59337, 75753, 98895, 126255, 153721, 296685, 378765, 461163, 768605, 1383489, 2305815, 2920699, 6917445, 8762097, 14603495, 26286291, 43810485, 131431455]

約数ペア:

[(1, 131431455), (3, 43810485), (5, 26286291), (9, 14603495), (15, 8762097), (19, 6917445), (45, 2920699), (57, 2305815), (95, 1383489), (171, 768605), (285, 461163), (347, 378765), (443, 296685), (855, 153721), (1041, 126255), (1329, 98895), (1735, 75753), (2215, 59337), (3123, 42085), (3987, 32965), (5205, 25251), (6593, 19935), (6645, 19779), (8417, 15615)]