648900390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{21630013}}^1$

素因数の和:21630023

約数の個数: 16

約数和(自身を含む): 1557361008

約数和(自身を除く): 908460618

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 21630013, 43260026, 64890039, 108150065, 129780078, 216300130, 324450195, 648900390]

約数ペア:

[(1, 648900390), (2, 324450195), (3, 216300130), (5, 129780078), (6, 108150065), (10, 64890039), (15, 43260026), (30, 21630013)]