213156760

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{30803}}^1$

素因数の和:30987

約数の個数: 32

約数和(自身を含む): 482390640

約数和(自身を除く): 269233880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 30803, 61606, 123212, 154015, 246424, 308030, 616060, 1232120, 5328919, 10657838, 21315676, 26644595, 42631352, 53289190, 106578380, 213156760]

約数ペア:

[(1, 213156760), (2, 106578380), (4, 53289190), (5, 42631352), (8, 26644595), (10, 21315676), (20, 10657838), (40, 5328919), (173, 1232120), (346, 616060), (692, 308030), (865, 246424), (1384, 154015), (1730, 123212), (3460, 61606), (6920, 30803)]