12811860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{653}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 39279240

約数和(自身を除く): 26467380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 653, 654, 981, 1090, 1306, 1308, 1635, 1959, 1962, 2180, 2612, 3265, 3270, 3918, 3924, 4905, 5877, 6530, 6540, 7836, 9795, 9810, 11754, 13060, 19590, 19620, 23508, 29385, 39180, 58770, 71177, 117540, 142354, 213531, 284708, 355885, 427062, 640593, 711770, 854124, 1067655, 1281186, 1423540, 2135310, 2562372, 3202965, 4270620, 6405930, 12811860]

約数ペア:

[(1, 12811860), (2, 6405930), (3, 4270620), (4, 3202965), (5, 2562372), (6, 2135310), (9, 1423540), (10, 1281186), (12, 1067655), (15, 854124), (18, 711770), (20, 640593), (30, 427062), (36, 355885), (45, 284708), (60, 213531), (90, 142354), (109, 117540), (180, 71177), (218, 58770), (327, 39180), (436, 29385), (545, 23508), (653, 19620), (654, 19590), (981, 13060), (1090, 11754), (1306, 9810), (1308, 9795), (1635, 7836), (1959, 6540), (1962, 6530), (2180, 5877), (2612, 4905), (3265, 3924), (3270, 3918)]