64860880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115823}}^1$

素因数の和:115843

約数の個数: 40

約数和(自身を含む): 172346112

約数和(自身を除く): 107485232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115823, 231646, 463292, 579115, 810761, 926584, 1158230, 1621522, 1853168, 2316460, 3243044, 4053805, 4632920, 6486088, 8107610, 9265840, 12972176, 16215220, 32430440, 64860880]

約数ペア:

[(1, 64860880), (2, 32430440), (4, 16215220), (5, 12972176), (7, 9265840), (8, 8107610), (10, 6486088), (14, 4632920), (16, 4053805), (20, 3243044), (28, 2316460), (35, 1853168), (40, 1621522), (56, 1158230), (70, 926584), (80, 810761), (112, 579115), (140, 463292), (280, 231646), (560, 115823)]