31879780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51419}}^1$

素因数の和:51459

約数の個数: 24

約数和(自身を含む): 69108480

約数和(自身を除く): 37228700

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 51419, 102838, 205676, 257095, 514190, 1028380, 1593989, 3187978, 6375956, 7969945, 15939890, 31879780]

約数ペア:

[(1, 31879780), (2, 15939890), (4, 7969945), (5, 6375956), (10, 3187978), (20, 1593989), (31, 1028380), (62, 514190), (124, 257095), (155, 205676), (310, 102838), (620, 51419)]