20147690800

素因数分解:

$2^4\times 5^2\times {\mathrm{109}}^1\times {\mathrm{462103}}^1$

素因数の和:462230

約数の個数: 60

約数和(自身を含む): 48849013840

約数和(自身を除く): 28701323040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 200, 218, 400, 436, 545, 872, 1090, 1744, 2180, 2725, 4360, 5450, 8720, 10900, 21800, 43600, 462103, 924206, 1848412, 2310515, 3696824, 4621030, 7393648, 9242060, 11552575, 18484120, 23105150, 36968240, 46210300, 50369227, 92420600, 100738454, 184841200, 201476908, 251846135, 402953816, 503692270, 805907632, 1007384540, 1259230675, 2014769080, 2518461350, 4029538160, 5036922700, 10073845400, 20147690800]

約数ペア:

[(1, 20147690800), (2, 10073845400), (4, 5036922700), (5, 4029538160), (8, 2518461350), (10, 2014769080), (16, 1259230675), (20, 1007384540), (25, 805907632), (40, 503692270), (50, 402953816), (80, 251846135), (100, 201476908), (109, 184841200), (200, 100738454), (218, 92420600), (400, 50369227), (436, 46210300), (545, 36968240), (872, 23105150), (1090, 18484120), (1744, 11552575), (2180, 9242060), (2725, 7393648), (4360, 4621030), (5450, 3696824), (8720, 2310515), (10900, 1848412), (21800, 924206), (43600, 462103)]