20951360

素因数分解:

$2^6\times 5^1\times {\mathrm{233}}^1\times {\mathrm{281}}^1$

素因数の和:531

約数の個数: 56

約数和(自身を含む): 50282856

約数和(自身を除く): 29331496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 233, 281, 320, 466, 562, 932, 1124, 1165, 1405, 1864, 2248, 2330, 2810, 3728, 4496, 4660, 5620, 7456, 8992, 9320, 11240, 14912, 17984, 18640, 22480, 37280, 44960, 65473, 74560, 89920, 130946, 261892, 327365, 523784, 654730, 1047568, 1309460, 2095136, 2618920, 4190272, 5237840, 10475680, 20951360]

約数ペア:

[(1, 20951360), (2, 10475680), (4, 5237840), (5, 4190272), (8, 2618920), (10, 2095136), (16, 1309460), (20, 1047568), (32, 654730), (40, 523784), (64, 327365), (80, 261892), (160, 130946), (233, 89920), (281, 74560), (320, 65473), (466, 44960), (562, 37280), (932, 22480), (1124, 18640), (1165, 17984), (1405, 14912), (1864, 11240), (2248, 9320), (2330, 8992), (2810, 7456), (3728, 5620), (4496, 4660)]