20120309990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1213}}^1\times {\mathrm{1493}}^1$

素因数の和:2825

約数の個数: 64

約数和(自身を含む): 39959790912

約数和(自身を除く): 19839480922

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 1213, 1493, 2222, 2426, 2986, 5555, 6065, 7465, 11110, 12130, 13343, 14930, 16423, 26686, 32846, 66715, 82115, 122513, 133430, 150793, 164230, 245026, 301586, 612565, 753965, 1225130, 1347643, 1507930, 1658723, 1811009, 2695286, 3317446, 3622018, 6738215, 8293615, 9055045, 13476430, 16587230, 18110090, 19921099, 39842198, 99605495, 182911909, 199210990, 365823818, 914559545, 1829119090, 2012030999, 4024061998, 10060154995, 20120309990]

約数ペア:

[(1, 20120309990), (2, 10060154995), (5, 4024061998), (10, 2012030999), (11, 1829119090), (22, 914559545), (55, 365823818), (101, 199210990), (110, 182911909), (202, 99605495), (505, 39842198), (1010, 19921099), (1111, 18110090), (1213, 16587230), (1493, 13476430), (2222, 9055045), (2426, 8293615), (2986, 6738215), (5555, 3622018), (6065, 3317446), (7465, 2695286), (11110, 1811009), (12130, 1658723), (13343, 1507930), (14930, 1347643), (16423, 1225130), (26686, 753965), (32846, 612565), (66715, 301586), (82115, 245026), (122513, 164230), (133430, 150793)]