257408086

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 457228800

約数和(自身を除く): 199820714

約数列:

[1, 2, 13, 19, 26, 38, 41, 71, 82, 142, 179, 247, 358, 494, 533, 779, 923, 1066, 1349, 1558, 1846, 2327, 2698, 2911, 3401, 4654, 5822, 6802, 7339, 10127, 12709, 14678, 17537, 20254, 25418, 35074, 37843, 44213, 55309, 75686, 88426, 95407, 110618, 139441, 165217, 190814, 241471, 278882, 330434, 482942, 521069, 719017, 1042138, 1438034, 1812733, 3139123, 3625466, 6278246, 6773897, 9900311, 13547794, 19800622, 128704043, 257408086]

約数ペア:

[(1, 257408086), (2, 128704043), (13, 19800622), (19, 13547794), (26, 9900311), (38, 6773897), (41, 6278246), (71, 3625466), (82, 3139123), (142, 1812733), (179, 1438034), (247, 1042138), (358, 719017), (494, 521069), (533, 482942), (779, 330434), (923, 278882), (1066, 241471), (1349, 190814), (1558, 165217), (1846, 139441), (2327, 110618), (2698, 95407), (2911, 88426), (3401, 75686), (4654, 55309), (5822, 44213), (6802, 37843), (7339, 35074), (10127, 25418), (12709, 20254), (14678, 17537)]