20638620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114659}}^1$

素因数の和:114674

約数の個数: 36

約数和(自身を含む): 62604360

約数和(自身を除く): 41965740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114659, 229318, 343977, 458636, 573295, 687954, 1031931, 1146590, 1375908, 1719885, 2063862, 2293180, 3439770, 4127724, 5159655, 6879540, 10319310, 20638620]

約数ペア:

[(1, 20638620), (2, 10319310), (3, 6879540), (4, 5159655), (5, 4127724), (6, 3439770), (9, 2293180), (10, 2063862), (12, 1719885), (15, 1375908), (18, 1146590), (20, 1031931), (30, 687954), (36, 573295), (45, 458636), (60, 343977), (90, 229318), (180, 114659)]