538585540

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{1033}}^1$

素因数の和:1372

約数の個数: 48

約数和(自身を含む): 1146499200

約数和(自身を除く): 607913660

約数列:

[1, 2, 4, 5, 10, 20, 131, 199, 262, 398, 524, 655, 796, 995, 1033, 1310, 1990, 2066, 2620, 3980, 4132, 5165, 10330, 20660, 26069, 52138, 104276, 130345, 135323, 205567, 260690, 270646, 411134, 521380, 541292, 676615, 822268, 1027835, 1353230, 2055670, 2706460, 4111340, 26929277, 53858554, 107717108, 134646385, 269292770, 538585540]

約数ペア:

[(1, 538585540), (2, 269292770), (4, 134646385), (5, 107717108), (10, 53858554), (20, 26929277), (131, 4111340), (199, 2706460), (262, 2055670), (398, 1353230), (524, 1027835), (655, 822268), (796, 676615), (995, 541292), (1033, 521380), (1310, 411134), (1990, 270646), (2066, 260690), (2620, 205567), (3980, 135323), (4132, 130345), (5165, 104276), (10330, 52138), (20660, 26069)]