256000758

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{601}}^1$

素因数の和:789

約数の個数: 64

約数和(自身を含む): 569597952

約数和(自身を除く): 313597194

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 127, 129, 254, 258, 381, 559, 601, 762, 1118, 1202, 1651, 1677, 1803, 3302, 3354, 3606, 4953, 5461, 7813, 9906, 10922, 15626, 16383, 23439, 25843, 32766, 46878, 51686, 70993, 76327, 77529, 141986, 152654, 155058, 212979, 228981, 335959, 425958, 457962, 671918, 992251, 1007877, 1984502, 2015754, 2976753, 3282061, 5953506, 6564122, 9846183, 19692366, 42666793, 85333586, 128000379, 256000758]

約数ペア:

[(1, 256000758), (2, 128000379), (3, 85333586), (6, 42666793), (13, 19692366), (26, 9846183), (39, 6564122), (43, 5953506), (78, 3282061), (86, 2976753), (127, 2015754), (129, 1984502), (254, 1007877), (258, 992251), (381, 671918), (559, 457962), (601, 425958), (762, 335959), (1118, 228981), (1202, 212979), (1651, 155058), (1677, 152654), (1803, 141986), (3302, 77529), (3354, 76327), (3606, 70993), (4953, 51686), (5461, 46878), (7813, 32766), (9906, 25843), (10922, 23439), (15626, 16383)]