239867875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 360097920

約数和(自身を除く): 120230045

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 125, 221, 247, 323, 325, 425, 457, 475, 1105, 1235, 1615, 1625, 2125, 2285, 2375, 4199, 5525, 5941, 6175, 7769, 8075, 8683, 11425, 20995, 27625, 29705, 30875, 38845, 40375, 43415, 57125, 100997, 104975, 112879, 147611, 148525, 194225, 217075, 504985, 524875, 564395, 738055, 742625, 971125, 1085375, 1918943, 2524925, 2821975, 3690275, 9594715, 12624625, 14109875, 18451375, 47973575, 239867875]

約数ペア:

[(1, 239867875), (5, 47973575), (13, 18451375), (17, 14109875), (19, 12624625), (25, 9594715), (65, 3690275), (85, 2821975), (95, 2524925), (125, 1918943), (221, 1085375), (247, 971125), (323, 742625), (325, 738055), (425, 564395), (457, 524875), (475, 504985), (1105, 217075), (1235, 194225), (1615, 148525), (1625, 147611), (2125, 112879), (2285, 104975), (2375, 100997), (4199, 57125), (5525, 43415), (5941, 40375), (6175, 38845), (7769, 30875), (8075, 29705), (8683, 27625), (11425, 20995)]