1291214830

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{655439}}^1$

素因数の和:655643

約数の個数: 16

約数和(自身を含む): 2335988160

約数和(自身を除く): 1044773330

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 655439, 1310878, 3277195, 6554390, 129121483, 258242966, 645607415, 1291214830]

約数ペア:

[(1, 1291214830), (2, 645607415), (5, 258242966), (10, 129121483), (197, 6554390), (394, 3277195), (985, 1310878), (1970, 655439)]