421769720

素因数分解:

$2^3\times 5^1\times {\mathrm{10544243}}^1$

素因数の和:10544254

約数の個数: 16

約数和(自身を含む): 948981960

約数和(自身を除く): 527212240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10544243, 21088486, 42176972, 52721215, 84353944, 105442430, 210884860, 421769720]

約数ペア:

[(1, 421769720), (2, 210884860), (4, 105442430), (5, 84353944), (8, 52721215), (10, 42176972), (20, 21088486), (40, 10544243)]