19981630

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{117539}}^1$

素因数の和:117563

約数の個数: 16

約数和(自身を含む): 38082960

約数和(自身を除く): 18101330

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 117539, 235078, 587695, 1175390, 1998163, 3996326, 9990815, 19981630]

約数ペア:

[(1, 19981630), (2, 9990815), (5, 3996326), (10, 1998163), (17, 1175390), (34, 587695), (85, 235078), (170, 117539)]