991330505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{202519}}^1$

素因数の和:202624

約数の個数: 16

約数和(自身を含む): 1312329600

約数和(自身を除く): 320999095

約数列:

[1, 5, 11, 55, 89, 445, 979, 4895, 202519, 1012595, 2227709, 11138545, 18024191, 90120955, 198266101, 991330505]

約数ペア:

[(1, 991330505), (5, 198266101), (11, 90120955), (55, 18024191), (89, 11138545), (445, 2227709), (979, 1012595), (4895, 202519)]