128090000

素因数分解:

$2^4\times 5^4\times {\mathrm{12809}}^1$

素因数の和:12837

約数の個数: 50

約数和(自身を含む): 310142910

約数和(自身を除く): 182052910

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 12809, 25618, 51236, 64045, 102472, 128090, 204944, 256180, 320225, 512360, 640450, 1024720, 1280900, 1601125, 2561800, 3202250, 5123600, 6404500, 8005625, 12809000, 16011250, 25618000, 32022500, 64045000, 128090000]

約数ペア:

[(1, 128090000), (2, 64045000), (4, 32022500), (5, 25618000), (8, 16011250), (10, 12809000), (16, 8005625), (20, 6404500), (25, 5123600), (40, 3202250), (50, 2561800), (80, 1601125), (100, 1280900), (125, 1024720), (200, 640450), (250, 512360), (400, 320225), (500, 256180), (625, 204944), (1000, 128090), (1250, 102472), (2000, 64045), (2500, 51236), (5000, 25618), (10000, 12809)]