85407790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21193}}^1$

素因数の和:21244

約数の個数: 32

約数和(自身を含む): 170908416

約数和(自身を除く): 85500626

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 21193, 42386, 105965, 211930, 275509, 551018, 656983, 1313966, 1377545, 2755090, 3284915, 6569830, 8540779, 17081558, 42703895, 85407790]

約数ペア:

[(1, 85407790), (2, 42703895), (5, 17081558), (10, 8540779), (13, 6569830), (26, 3284915), (31, 2755090), (62, 1377545), (65, 1313966), (130, 656983), (155, 551018), (310, 275509), (403, 211930), (806, 105965), (2015, 42386), (4030, 21193)]