85289425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 123742080

約数和(自身を除く): 38452655

約数列:

[1, 5, 13, 17, 25, 43, 65, 85, 215, 221, 325, 359, 425, 559, 731, 1075, 1105, 1795, 2795, 3655, 4667, 5525, 6103, 8975, 9503, 13975, 15437, 18275, 23335, 30515, 47515, 77185, 79339, 116675, 152575, 200681, 237575, 262429, 385925, 396695, 1003405, 1312145, 1983475, 3411577, 5017025, 6560725, 17057885, 85289425]

約数ペア:

[(1, 85289425), (5, 17057885), (13, 6560725), (17, 5017025), (25, 3411577), (43, 1983475), (65, 1312145), (85, 1003405), (215, 396695), (221, 385925), (325, 262429), (359, 237575), (425, 200681), (559, 152575), (731, 116675), (1075, 79339), (1105, 77185), (1795, 47515), (2795, 30515), (3655, 23335), (4667, 18275), (5525, 15437), (6103, 13975), (8975, 9503)]