81170890

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1\times {\mathrm{443}}^1$

素因数の和:774

約数の個数: 32

約数和(自身を含む): 149034816

約数和(自身を除く): 67863926

約数列:

[1, 2, 5, 10, 73, 146, 251, 365, 443, 502, 730, 886, 1255, 2215, 2510, 4430, 18323, 32339, 36646, 64678, 91615, 111193, 161695, 183230, 222386, 323390, 555965, 1111930, 8117089, 16234178, 40585445, 81170890]

約数ペア:

[(1, 81170890), (2, 40585445), (5, 16234178), (10, 8117089), (73, 1111930), (146, 555965), (251, 323390), (365, 222386), (443, 183230), (502, 161695), (730, 111193), (886, 91615), (1255, 64678), (2215, 36646), (2510, 32339), (4430, 18323)]