638412138

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{129917}}^1$

素因数の和:129948

約数の個数: 64

約数和(自身を含む): 1746097920

約数和(自身を除く): 1107685782

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4914, 129917, 259834, 389751, 779502, 909419, 1169253, 1688921, 1818838, 2338506, 2728257, 3377842, 3507759, 5066763, 5456514, 7015518, 8184771, 10133526, 11822447, 15200289, 16369542, 23644894, 24554313, 30400578, 35467341, 45600867, 49108626, 70934682, 91201734, 106402023, 212804046, 319206069, 638412138]

約数ペア:

[(1, 638412138), (2, 319206069), (3, 212804046), (6, 106402023), (7, 91201734), (9, 70934682), (13, 49108626), (14, 45600867), (18, 35467341), (21, 30400578), (26, 24554313), (27, 23644894), (39, 16369542), (42, 15200289), (54, 11822447), (63, 10133526), (78, 8184771), (91, 7015518), (117, 5456514), (126, 5066763), (182, 3507759), (189, 3377842), (234, 2728257), (273, 2338506), (351, 1818838), (378, 1688921), (546, 1169253), (702, 909419), (819, 779502), (1638, 389751), (2457, 259834), (4914, 129917)]