19644640

素因数分解:

$2^5\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2081}}^1$

素因数の和:2155

約数の個数: 48

約数和(自身を含む): 47219760

約数和(自身を除く): 27575120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 80, 118, 160, 236, 295, 472, 590, 944, 1180, 1888, 2081, 2360, 4162, 4720, 8324, 9440, 10405, 16648, 20810, 33296, 41620, 66592, 83240, 122779, 166480, 245558, 332960, 491116, 613895, 982232, 1227790, 1964464, 2455580, 3928928, 4911160, 9822320, 19644640]

約数ペア:

[(1, 19644640), (2, 9822320), (4, 4911160), (5, 3928928), (8, 2455580), (10, 1964464), (16, 1227790), (20, 982232), (32, 613895), (40, 491116), (59, 332960), (80, 245558), (118, 166480), (160, 122779), (236, 83240), (295, 66592), (472, 41620), (590, 33296), (944, 20810), (1180, 16648), (1888, 10405), (2081, 9440), (2360, 8324), (4162, 4720)]