280054530

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2087}}^1$

素因数の和:2181

約数の個数: 128

約数和(自身を含む): 865935360

約数和(自身を除く): 585880830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 71, 90, 105, 126, 135, 142, 189, 210, 213, 270, 315, 355, 378, 426, 497, 630, 639, 710, 945, 994, 1065, 1278, 1491, 1890, 1917, 2087, 2130, 2485, 2982, 3195, 3834, 4174, 4473, 4970, 6261, 6390, 7455, 8946, 9585, 10435, 12522, 13419, 14609, 14910, 18783, 19170, 20870, 22365, 26838, 29218, 31305, 37566, 43827, 44730, 56349, 62610, 67095, 73045, 87654, 93915, 112698, 131481, 134190, 146090, 148177, 187830, 219135, 262962, 281745, 296354, 394443, 438270, 444531, 563490, 657405, 740885, 788886, 889062, 1037239, 1314810, 1333593, 1481770, 1972215, 2074478, 2222655, 2667186, 3111717, 3944430, 4000779, 4445310, 5186195, 6223434, 6667965, 8001558, 9335151, 10372390, 13335930, 15558585, 18670302, 20003895, 28005453, 31117170, 40007790, 46675755, 56010906, 93351510, 140027265, 280054530]

約数ペア:

[(1, 280054530), (2, 140027265), (3, 93351510), (5, 56010906), (6, 46675755), (7, 40007790), (9, 31117170), (10, 28005453), (14, 20003895), (15, 18670302), (18, 15558585), (21, 13335930), (27, 10372390), (30, 9335151), (35, 8001558), (42, 6667965), (45, 6223434), (54, 5186195), (63, 4445310), (70, 4000779), (71, 3944430), (90, 3111717), (105, 2667186), (126, 2222655), (135, 2074478), (142, 1972215), (189, 1481770), (210, 1333593), (213, 1314810), (270, 1037239), (315, 889062), (355, 788886), (378, 740885), (426, 657405), (497, 563490), (630, 444531), (639, 438270), (710, 394443), (945, 296354), (994, 281745), (1065, 262962), (1278, 219135), (1491, 187830), (1890, 148177), (1917, 146090), (2087, 134190), (2130, 131481), (2485, 112698), (2982, 93915), (3195, 87654), (3834, 73045), (4174, 67095), (4473, 62610), (4970, 56349), (6261, 44730), (6390, 43827), (7455, 37566), (8946, 31305), (9585, 29218), (10435, 26838), (12522, 22365), (13419, 20870), (14609, 19170), (14910, 18783)]