257848160

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^2\times {\mathrm{359}}^1$

素因数の和:508

約数の個数: 72

約数和(自身を含む): 620116560

約数和(自身を除く): 362268400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 359, 536, 670, 718, 1072, 1340, 1436, 1795, 2144, 2680, 2872, 3590, 4489, 5360, 5744, 7180, 8978, 10720, 11488, 14360, 17956, 22445, 24053, 28720, 35912, 44890, 48106, 57440, 71824, 89780, 96212, 120265, 143648, 179560, 192424, 240530, 359120, 384848, 481060, 718240, 769696, 962120, 1611551, 1924240, 3223102, 3848480, 6446204, 8057755, 12892408, 16115510, 25784816, 32231020, 51569632, 64462040, 128924080, 257848160]

約数ペア:

[(1, 257848160), (2, 128924080), (4, 64462040), (5, 51569632), (8, 32231020), (10, 25784816), (16, 16115510), (20, 12892408), (32, 8057755), (40, 6446204), (67, 3848480), (80, 3223102), (134, 1924240), (160, 1611551), (268, 962120), (335, 769696), (359, 718240), (536, 481060), (670, 384848), (718, 359120), (1072, 240530), (1340, 192424), (1436, 179560), (1795, 143648), (2144, 120265), (2680, 96212), (2872, 89780), (3590, 71824), (4489, 57440), (5360, 48106), (5744, 44890), (7180, 35912), (8978, 28720), (10720, 24053), (11488, 22445), (14360, 17956)]