689632016

素因数分解:

$2^4\times {\mathrm{3923}}^1\times {\mathrm{10987}}^1$

素因数の和:14918

約数の個数: 20

約数和(自身を含む): 1336624272

約数和(自身を除く): 646992256

約数列:

[1, 2, 4, 8, 16, 3923, 7846, 10987, 15692, 21974, 31384, 43948, 62768, 87896, 175792, 43102001, 86204002, 172408004, 344816008, 689632016]

約数ペア:

[(1, 689632016), (2, 344816008), (4, 172408004), (8, 86204002), (16, 43102001), (3923, 175792), (7846, 87896), (10987, 62768), (15692, 43948), (21974, 31384)]