20386430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2617}}^1$

素因数の和:2684

約数の個数: 32

約数和(自身を含む): 39584160

約数和(自身を除く): 19197730

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 2617, 3895, 5234, 7790, 13085, 26170, 49723, 99446, 107297, 214594, 248615, 497230, 536485, 1072970, 2038643, 4077286, 10193215, 20386430]

約数ペア:

[(1, 20386430), (2, 10193215), (5, 4077286), (10, 2038643), (19, 1072970), (38, 536485), (41, 497230), (82, 248615), (95, 214594), (190, 107297), (205, 99446), (410, 49723), (779, 26170), (1558, 13085), (2617, 7790), (3895, 5234)]