1372421090

素因数分解:

$2^1\times 5^1\times {\mathrm{6389}}^1\times {\mathrm{21481}}^1$

素因数の和:27877

約数の個数: 16

約数和(自身を含む): 2470859640

約数和(自身を除く): 1098438550

約数列:

[1, 2, 5, 10, 6389, 12778, 21481, 31945, 42962, 63890, 107405, 214810, 137242109, 274484218, 686210545, 1372421090]

約数ペア:

[(1, 1372421090), (2, 686210545), (5, 274484218), (10, 137242109), (6389, 214810), (12778, 107405), (21481, 63890), (31945, 42962)]