20109590800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3867229}}^1$

素因数の和:3867260

約数の個数: 60

約数和(自身を含む): 52029712420

約数和(自身を除く): 31920121620

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 3867229, 7734458, 15468916, 19336145, 30937832, 38672290, 50273977, 61875664, 77344580, 96680725, 100547954, 154689160, 193361450, 201095908, 251369885, 309378320, 386722900, 402191816, 502739770, 773445800, 804383632, 1005479540, 1256849425, 1546891600, 2010959080, 2513698850, 4021918160, 5027397700, 10054795400, 20109590800]

約数ペア:

[(1, 20109590800), (2, 10054795400), (4, 5027397700), (5, 4021918160), (8, 2513698850), (10, 2010959080), (13, 1546891600), (16, 1256849425), (20, 1005479540), (25, 804383632), (26, 773445800), (40, 502739770), (50, 402191816), (52, 386722900), (65, 309378320), (80, 251369885), (100, 201095908), (104, 193361450), (130, 154689160), (200, 100547954), (208, 96680725), (260, 77344580), (325, 61875664), (400, 50273977), (520, 38672290), (650, 30937832), (1040, 19336145), (1300, 15468916), (2600, 7734458), (5200, 3867229)]