1660326640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2964869}}^1$

素因数の和:2964889

約数の個数: 40

約数和(自身を含む): 4411726560

約数和(自身を除く): 2751399920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2964869, 5929738, 11859476, 14824345, 20754083, 23718952, 29648690, 41508166, 47437904, 59297380, 83016332, 103770415, 118594760, 166032664, 207540830, 237189520, 332065328, 415081660, 830163320, 1660326640]

約数ペア:

[(1, 1660326640), (2, 830163320), (4, 415081660), (5, 332065328), (7, 237189520), (8, 207540830), (10, 166032664), (14, 118594760), (16, 103770415), (20, 83016332), (28, 59297380), (35, 47437904), (40, 41508166), (56, 29648690), (70, 23718952), (80, 20754083), (112, 14824345), (140, 11859476), (280, 5929738), (560, 2964869)]