19002020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{11447}}^1$

素因数の和:11539

約数の個数: 24

約数和(自身を含む): 40388544

約数和(自身を除く): 21386524

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 11447, 22894, 45788, 57235, 114470, 228940, 950101, 1900202, 3800404, 4750505, 9501010, 19002020]

約数ペア:

[(1, 19002020), (2, 9501010), (4, 4750505), (5, 3800404), (10, 1900202), (20, 950101), (83, 228940), (166, 114470), (332, 57235), (415, 45788), (830, 22894), (1660, 11447)]