263245787

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 336856320

約数和(自身を除く): 73610533

約数列:

[1, 7, 23, 37, 49, 59, 107, 161, 259, 413, 749, 851, 1127, 1357, 1813, 2183, 2461, 2891, 3959, 5243, 5957, 6313, 9499, 15281, 17227, 27713, 41699, 44191, 50209, 66493, 91057, 106967, 120589, 145199, 193991, 233581, 309337, 351463, 637399, 1016393, 1635067, 2460241, 4461793, 5372363, 7114751, 11445469, 37606541, 263245787]

約数ペア:

[(1, 263245787), (7, 37606541), (23, 11445469), (37, 7114751), (49, 5372363), (59, 4461793), (107, 2460241), (161, 1635067), (259, 1016393), (413, 637399), (749, 351463), (851, 309337), (1127, 233581), (1357, 193991), (1813, 145199), (2183, 120589), (2461, 106967), (2891, 91057), (3959, 66493), (5243, 50209), (5957, 44191), (6313, 41699), (9499, 27713), (15281, 17227)]