840636

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{1229}}^1$

素因数の和:1258

約数の個数: 36

約数和(自身を含む): 2238600

約数和(自身を除く): 1397964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 1229, 2458, 3687, 4916, 7374, 11061, 14748, 22122, 23351, 44244, 46702, 70053, 93404, 140106, 210159, 280212, 420318, 840636]

約数ペア:

[(1, 840636), (2, 420318), (3, 280212), (4, 210159), (6, 140106), (9, 93404), (12, 70053), (18, 46702), (19, 44244), (36, 23351), (38, 22122), (57, 14748), (76, 11061), (114, 7374), (171, 4916), (228, 3687), (342, 2458), (684, 1229)]