19813990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3583}}^1$

素因数の和:3676

約数の個数: 32

約数和(自身を含む): 41287680

約数和(自身を除く): 21473690

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 395, 553, 790, 1106, 2765, 3583, 5530, 7166, 17915, 25081, 35830, 50162, 125405, 250810, 283057, 566114, 1415285, 1981399, 2830570, 3962798, 9906995, 19813990]

約数ペア:

[(1, 19813990), (2, 9906995), (5, 3962798), (7, 2830570), (10, 1981399), (14, 1415285), (35, 566114), (70, 283057), (79, 250810), (158, 125405), (395, 50162), (553, 35830), (790, 25081), (1106, 17915), (2765, 7166), (3583, 5530)]