20309000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{883}}^1$

素因数の和:927

約数の個数: 64

約数和(自身を含む): 49645440

約数和(自身を除く): 29336440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 230, 250, 460, 500, 575, 883, 920, 1000, 1150, 1766, 2300, 2875, 3532, 4415, 4600, 5750, 7064, 8830, 11500, 17660, 20309, 22075, 23000, 35320, 40618, 44150, 81236, 88300, 101545, 110375, 162472, 176600, 203090, 220750, 406180, 441500, 507725, 812360, 883000, 1015450, 2030900, 2538625, 4061800, 5077250, 10154500, 20309000]

約数ペア:

[(1, 20309000), (2, 10154500), (4, 5077250), (5, 4061800), (8, 2538625), (10, 2030900), (20, 1015450), (23, 883000), (25, 812360), (40, 507725), (46, 441500), (50, 406180), (92, 220750), (100, 203090), (115, 176600), (125, 162472), (184, 110375), (200, 101545), (230, 88300), (250, 81236), (460, 44150), (500, 40618), (575, 35320), (883, 23000), (920, 22075), (1000, 20309), (1150, 17660), (1766, 11500), (2300, 8830), (2875, 7064), (3532, 5750), (4415, 4600)]