80491190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19973}}^1$

素因数の和:20024

約数の個数: 32

約数和(自身を含む): 161070336

約数和(自身を除く): 80579146

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 19973, 39946, 99865, 199730, 259649, 519298, 619163, 1238326, 1298245, 2596490, 3095815, 6191630, 8049119, 16098238, 40245595, 80491190]

約数ペア:

[(1, 80491190), (2, 40245595), (5, 16098238), (10, 8049119), (13, 6191630), (26, 3095815), (31, 2596490), (62, 1298245), (65, 1238326), (130, 619163), (155, 519298), (310, 259649), (403, 199730), (806, 99865), (2015, 39946), (4030, 19973)]