173668280

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{81919}}^1$

素因数の和:81983

約数の個数: 32

約数和(自身を含む): 398131200

約数和(自身を除く): 224462920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 81919, 163838, 327676, 409595, 655352, 819190, 1638380, 3276760, 4341707, 8683414, 17366828, 21708535, 34733656, 43417070, 86834140, 173668280]

約数ペア:

[(1, 173668280), (2, 86834140), (4, 43417070), (5, 34733656), (8, 21708535), (10, 17366828), (20, 8683414), (40, 4341707), (53, 3276760), (106, 1638380), (212, 819190), (265, 655352), (424, 409595), (530, 327676), (1060, 163838), (2120, 81919)]