251389690

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{3373}}^1$

素因数の和:3666

約数の個数: 32

約数和(自身を含む): 470065680

約数和(自身を除く): 218675990

約数列:

[1, 2, 5, 10, 29, 58, 145, 257, 290, 514, 1285, 2570, 3373, 6746, 7453, 14906, 16865, 33730, 37265, 74530, 97817, 195634, 489085, 866861, 978170, 1733722, 4334305, 8668610, 25138969, 50277938, 125694845, 251389690]

約数ペア:

[(1, 251389690), (2, 125694845), (5, 50277938), (10, 25138969), (29, 8668610), (58, 4334305), (145, 1733722), (257, 978170), (290, 866861), (514, 489085), (1285, 195634), (2570, 97817), (3373, 74530), (6746, 37265), (7453, 33730), (14906, 16865)]