78857175

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 135498272

約数和(自身を除く): 56641097

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 157, 181, 185, 471, 543, 555, 785, 905, 925, 2355, 2715, 2775, 3925, 4525, 5809, 6697, 11775, 13575, 17427, 20091, 28417, 29045, 33485, 85251, 87135, 100455, 142085, 145225, 167425, 426255, 435675, 502275, 710425, 1051429, 2131275, 3154287, 5257145, 15771435, 26285725, 78857175]

約数ペア:

[(1, 78857175), (3, 26285725), (5, 15771435), (15, 5257145), (25, 3154287), (37, 2131275), (75, 1051429), (111, 710425), (157, 502275), (181, 435675), (185, 426255), (471, 167425), (543, 145225), (555, 142085), (785, 100455), (905, 87135), (925, 85251), (2355, 33485), (2715, 29045), (2775, 28417), (3925, 20091), (4525, 17427), (5809, 13575), (6697, 11775)]