278375238

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4271}}^1$

素因数の和:4370

約数の個数: 64

約数和(自身を含む): 664381440

約数和(自身を除く): 386006202

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 71, 102, 142, 153, 213, 306, 426, 459, 639, 918, 1207, 1278, 1917, 2414, 3621, 3834, 4271, 7242, 8542, 10863, 12813, 21726, 25626, 32589, 38439, 65178, 72607, 76878, 115317, 145214, 217821, 230634, 303241, 435642, 606482, 653463, 909723, 1306926, 1819446, 1960389, 2729169, 3920778, 5155097, 5458338, 8187507, 10310194, 15465291, 16375014, 30930582, 46395873, 92791746, 139187619, 278375238]

約数ペア:

[(1, 278375238), (2, 139187619), (3, 92791746), (6, 46395873), (9, 30930582), (17, 16375014), (18, 15465291), (27, 10310194), (34, 8187507), (51, 5458338), (54, 5155097), (71, 3920778), (102, 2729169), (142, 1960389), (153, 1819446), (213, 1306926), (306, 909723), (426, 653463), (459, 606482), (639, 435642), (918, 303241), (1207, 230634), (1278, 217821), (1917, 145214), (2414, 115317), (3621, 76878), (3834, 72607), (4271, 65178), (7242, 38439), (8542, 32589), (10863, 25626), (12813, 21726)]