31991620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4091}}^1$

素因数の和:4140

約数の個数: 48

約数和(自身を含む): 74245248

約数和(自身を除く): 42253628

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 4091, 7820, 8182, 16364, 20455, 40910, 69547, 81820, 94093, 139094, 188186, 278188, 347735, 376372, 470465, 695470, 940930, 1390940, 1599581, 1881860, 3199162, 6398324, 7997905, 15995810, 31991620]

約数ペア:

[(1, 31991620), (2, 15995810), (4, 7997905), (5, 6398324), (10, 3199162), (17, 1881860), (20, 1599581), (23, 1390940), (34, 940930), (46, 695470), (68, 470465), (85, 376372), (92, 347735), (115, 278188), (170, 188186), (230, 139094), (340, 94093), (391, 81820), (460, 69547), (782, 40910), (1564, 20455), (1955, 16364), (3910, 8182), (4091, 7820)]