28468620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1451}}^1$

素因数の和:1575

約数の個数: 72

約数和(自身を含む): 87207120

約数和(自身を除く): 58738500

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, 654, 981, 1090, 1308, 1451, 1635, 1962, 2180, 2902, 3270, 3924, 4353, 4905, 5804, 6540, 7255, 8706, 9810, 13059, 14510, 17412, 19620, 21765, 26118, 29020, 43530, 52236, 65295, 87060, 130590, 158159, 261180, 316318, 474477, 632636, 790795, 948954, 1423431, 1581590, 1897908, 2372385, 2846862, 3163180, 4744770, 5693724, 7117155, 9489540, 14234310, 28468620]

約数ペア:

[(1, 28468620), (2, 14234310), (3, 9489540), (4, 7117155), (5, 5693724), (6, 4744770), (9, 3163180), (10, 2846862), (12, 2372385), (15, 1897908), (18, 1581590), (20, 1423431), (30, 948954), (36, 790795), (45, 632636), (60, 474477), (90, 316318), (109, 261180), (180, 158159), (218, 130590), (327, 87060), (436, 65295), (545, 52236), (654, 43530), (981, 29020), (1090, 26118), (1308, 21765), (1451, 19620), (1635, 17412), (1962, 14510), (2180, 13059), (2902, 9810), (3270, 8706), (3924, 7255), (4353, 6540), (4905, 5804)]