278301258

素因数分解:

$2^1\times 3^4\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:421

約数の個数: 80

約数和(自身を含む): 641142216

約数和(自身を除く): 362840958

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 81, 101, 146, 162, 202, 219, 233, 303, 438, 466, 606, 657, 699, 909, 1314, 1398, 1818, 1971, 2097, 2727, 3942, 4194, 5454, 5913, 6291, 7373, 8181, 11826, 12582, 14746, 16362, 17009, 18873, 22119, 23533, 34018, 37746, 44238, 47066, 51027, 66357, 70599, 102054, 132714, 141198, 153081, 199071, 211797, 306162, 398142, 423594, 459243, 597213, 635391, 918486, 1194426, 1270782, 1377729, 1717909, 1906173, 2755458, 3435818, 3812346, 5153727, 10307454, 15461181, 30922362, 46383543, 92767086, 139150629, 278301258]

約数ペア:

[(1, 278301258), (2, 139150629), (3, 92767086), (6, 46383543), (9, 30922362), (18, 15461181), (27, 10307454), (54, 5153727), (73, 3812346), (81, 3435818), (101, 2755458), (146, 1906173), (162, 1717909), (202, 1377729), (219, 1270782), (233, 1194426), (303, 918486), (438, 635391), (466, 597213), (606, 459243), (657, 423594), (699, 398142), (909, 306162), (1314, 211797), (1398, 199071), (1818, 153081), (1971, 141198), (2097, 132714), (2727, 102054), (3942, 70599), (4194, 66357), (5454, 51027), (5913, 47066), (6291, 44238), (7373, 37746), (8181, 34018), (11826, 23533), (12582, 22119), (14746, 18873), (16362, 17009)]