164381440

素因数分解:

$2^8\times 5^1\times {\mathrm{167}}^1\times {\mathrm{769}}^1$

素因数の和:957

約数の個数: 72

約数和(自身を含む): 396617760

約数和(自身を除く): 232236320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 256, 320, 334, 640, 668, 769, 835, 1280, 1336, 1538, 1670, 2672, 3076, 3340, 3845, 5344, 6152, 6680, 7690, 10688, 12304, 13360, 15380, 21376, 24608, 26720, 30760, 42752, 49216, 53440, 61520, 98432, 106880, 123040, 128423, 196864, 213760, 246080, 256846, 492160, 513692, 642115, 984320, 1027384, 1284230, 2054768, 2568460, 4109536, 5136920, 8219072, 10273840, 16438144, 20547680, 32876288, 41095360, 82190720, 164381440]

約数ペア:

[(1, 164381440), (2, 82190720), (4, 41095360), (5, 32876288), (8, 20547680), (10, 16438144), (16, 10273840), (20, 8219072), (32, 5136920), (40, 4109536), (64, 2568460), (80, 2054768), (128, 1284230), (160, 1027384), (167, 984320), (256, 642115), (320, 513692), (334, 492160), (640, 256846), (668, 246080), (769, 213760), (835, 196864), (1280, 128423), (1336, 123040), (1538, 106880), (1670, 98432), (2672, 61520), (3076, 53440), (3340, 49216), (3845, 42752), (5344, 30760), (6152, 26720), (6680, 24608), (7690, 21376), (10688, 15380), (12304, 13360)]