256402986

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{233}}^1$

素因数の和:468

約数の個数: 96

約数和(自身を含む): 633821760

約数和(自身を除く): 377418774

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 197, 233, 266, 294, 394, 399, 466, 591, 699, 798, 931, 1182, 1379, 1398, 1631, 1862, 2758, 2793, 3262, 3743, 4137, 4427, 4893, 5586, 7486, 8274, 8854, 9653, 9786, 11229, 11417, 13281, 19306, 22458, 22834, 26201, 26562, 28959, 30989, 34251, 45901, 52402, 57918, 61978, 68502, 78603, 91802, 92967, 137703, 157206, 183407, 185934, 216923, 275406, 321307, 366814, 433846, 550221, 642614, 650769, 872119, 963921, 1100442, 1301538, 1744238, 1927842, 2249149, 2616357, 4498298, 5232714, 6104833, 6747447, 12209666, 13494894, 18314499, 36628998, 42733831, 85467662, 128201493, 256402986]

約数ペア:

[(1, 256402986), (2, 128201493), (3, 85467662), (6, 42733831), (7, 36628998), (14, 18314499), (19, 13494894), (21, 12209666), (38, 6747447), (42, 6104833), (49, 5232714), (57, 4498298), (98, 2616357), (114, 2249149), (133, 1927842), (147, 1744238), (197, 1301538), (233, 1100442), (266, 963921), (294, 872119), (394, 650769), (399, 642614), (466, 550221), (591, 433846), (699, 366814), (798, 321307), (931, 275406), (1182, 216923), (1379, 185934), (1398, 183407), (1631, 157206), (1862, 137703), (2758, 92967), (2793, 91802), (3262, 78603), (3743, 68502), (4137, 61978), (4427, 57918), (4893, 52402), (5586, 45901), (7486, 34251), (8274, 30989), (8854, 28959), (9653, 26562), (9786, 26201), (11229, 22834), (11417, 22458), (13281, 19306)]