257764260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{17393}}^1$

素因数の和:17437

約数の個数: 96

約数和(自身を含む): 818213760

約数和(自身を除く): 560449500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1482, 2470, 2964, 3705, 4940, 7410, 14820, 17393, 34786, 52179, 69572, 86965, 104358, 173930, 208716, 226109, 260895, 330467, 347860, 452218, 521790, 660934, 678327, 904436, 991401, 1043580, 1130545, 1321868, 1356654, 1652335, 1982802, 2261090, 2713308, 3304670, 3391635, 3965604, 4296071, 4522180, 4957005, 6609340, 6783270, 8592142, 9914010, 12888213, 13566540, 17184284, 19828020, 21480355, 25776426, 42960710, 51552852, 64441065, 85921420, 128882130, 257764260]

約数ペア:

[(1, 257764260), (2, 128882130), (3, 85921420), (4, 64441065), (5, 51552852), (6, 42960710), (10, 25776426), (12, 21480355), (13, 19828020), (15, 17184284), (19, 13566540), (20, 12888213), (26, 9914010), (30, 8592142), (38, 6783270), (39, 6609340), (52, 4957005), (57, 4522180), (60, 4296071), (65, 3965604), (76, 3391635), (78, 3304670), (95, 2713308), (114, 2261090), (130, 1982802), (156, 1652335), (190, 1356654), (195, 1321868), (228, 1130545), (247, 1043580), (260, 991401), (285, 904436), (380, 678327), (390, 660934), (494, 521790), (570, 452218), (741, 347860), (780, 330467), (988, 260895), (1140, 226109), (1235, 208716), (1482, 173930), (2470, 104358), (2964, 86965), (3705, 69572), (4940, 52179), (7410, 34786), (14820, 17393)]