28236280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{701}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 68234400

約数和(自身を除く): 39998120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 424, 530, 701, 760, 1007, 1060, 1402, 2014, 2120, 2804, 3505, 4028, 5035, 5608, 7010, 8056, 10070, 13319, 14020, 20140, 26638, 28040, 37153, 40280, 53276, 66595, 74306, 106552, 133190, 148612, 185765, 266380, 297224, 371530, 532760, 705907, 743060, 1411814, 1486120, 2823628, 3529535, 5647256, 7059070, 14118140, 28236280]

約数ペア:

[(1, 28236280), (2, 14118140), (4, 7059070), (5, 5647256), (8, 3529535), (10, 2823628), (19, 1486120), (20, 1411814), (38, 743060), (40, 705907), (53, 532760), (76, 371530), (95, 297224), (106, 266380), (152, 185765), (190, 148612), (212, 133190), (265, 106552), (380, 74306), (424, 66595), (530, 53276), (701, 40280), (760, 37153), (1007, 28040), (1060, 26638), (1402, 20140), (2014, 14020), (2120, 13319), (2804, 10070), (3505, 8056), (4028, 7010), (5035, 5608)]