161905808

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{449}}^1\times {\mathrm{727}}^1$

素因数の和:1215

約数の個数: 40

約数和(自身を含む): 324979200

約数和(自身を除く): 163073392

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 449, 496, 727, 898, 1454, 1796, 2908, 3592, 5816, 7184, 11632, 13919, 22537, 27838, 45074, 55676, 90148, 111352, 180296, 222704, 326423, 360592, 652846, 1305692, 2611384, 5222768, 10119113, 20238226, 40476452, 80952904, 161905808]

約数ペア:

[(1, 161905808), (2, 80952904), (4, 40476452), (8, 20238226), (16, 10119113), (31, 5222768), (62, 2611384), (124, 1305692), (248, 652846), (449, 360592), (496, 326423), (727, 222704), (898, 180296), (1454, 111352), (1796, 90148), (2908, 55676), (3592, 45074), (5816, 27838), (7184, 22537), (11632, 13919)]