87259420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{140741}}^1$

素因数の和:140781

約数の個数: 24

約数和(自身を含む): 189157248

約数和(自身を除く): 101897828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 140741, 281482, 562964, 703705, 1407410, 2814820, 4362971, 8725942, 17451884, 21814855, 43629710, 87259420]

約数ペア:

[(1, 87259420), (2, 43629710), (4, 21814855), (5, 17451884), (10, 8725942), (20, 4362971), (31, 2814820), (62, 1407410), (124, 703705), (155, 562964), (310, 281482), (620, 140741)]