251657375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 366612480

約数和(自身を除く): 114955105

約数列:

[1, 5, 17, 19, 23, 25, 85, 95, 115, 125, 271, 323, 391, 425, 437, 475, 575, 1355, 1615, 1955, 2125, 2185, 2375, 2875, 4607, 5149, 6233, 6775, 7429, 8075, 9775, 10925, 23035, 25745, 31165, 33875, 37145, 40375, 48875, 54625, 87533, 105961, 115175, 118427, 128725, 155825, 185725, 437665, 529805, 575875, 592135, 643625, 779125, 928625, 2013259, 2188325, 2649025, 2960675, 10066295, 10941625, 13245125, 14803375, 50331475, 251657375]

約数ペア:

[(1, 251657375), (5, 50331475), (17, 14803375), (19, 13245125), (23, 10941625), (25, 10066295), (85, 2960675), (95, 2649025), (115, 2188325), (125, 2013259), (271, 928625), (323, 779125), (391, 643625), (425, 592135), (437, 575875), (475, 529805), (575, 437665), (1355, 185725), (1615, 155825), (1955, 128725), (2125, 118427), (2185, 115175), (2375, 105961), (2875, 87533), (4607, 54625), (5149, 48875), (6233, 40375), (6775, 37145), (7429, 33875), (8075, 31165), (9775, 25745), (10925, 23035)]