256446711

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 404591616

約数和(自身を除く): 148144905

約数列:

[1, 3, 9, 23, 43, 47, 69, 129, 141, 207, 387, 423, 613, 989, 1081, 1839, 2021, 2967, 3243, 5517, 6063, 8901, 9729, 14099, 18189, 26359, 28811, 42297, 46483, 79077, 86433, 126891, 139449, 237231, 259299, 418347, 606257, 662653, 1238873, 1818771, 1987959, 3716619, 5456313, 5963877, 11149857, 28494079, 85482237, 256446711]

約数ペア:

[(1, 256446711), (3, 85482237), (9, 28494079), (23, 11149857), (43, 5963877), (47, 5456313), (69, 3716619), (129, 1987959), (141, 1818771), (207, 1238873), (387, 662653), (423, 606257), (613, 418347), (989, 259299), (1081, 237231), (1839, 139449), (2021, 126891), (2967, 86433), (3243, 79077), (5517, 46483), (6063, 42297), (8901, 28811), (9729, 26359), (14099, 18189)]