20149070

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64997}}^1$

素因数の和:65035

約数の個数: 16

約数和(自身を含む): 37438848

約数和(自身を除く): 17289778

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 64997, 129994, 324985, 649970, 2014907, 4029814, 10074535, 20149070]

約数ペア:

[(1, 20149070), (2, 10074535), (5, 4029814), (10, 2014907), (31, 649970), (62, 324985), (155, 129994), (310, 64997)]