28355925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 51107840

約数和(自身を除く): 22751915

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 127, 195, 229, 325, 381, 635, 687, 975, 1145, 1651, 1905, 2977, 3175, 3435, 4953, 5725, 8255, 8931, 9525, 14885, 17175, 24765, 29083, 41275, 44655, 74425, 87249, 123825, 145415, 223275, 378079, 436245, 727075, 1134237, 1890395, 2181225, 5671185, 9451975, 28355925]

約数ペア:

[(1, 28355925), (3, 9451975), (5, 5671185), (13, 2181225), (15, 1890395), (25, 1134237), (39, 727075), (65, 436245), (75, 378079), (127, 223275), (195, 145415), (229, 123825), (325, 87249), (381, 74425), (635, 44655), (687, 41275), (975, 29083), (1145, 24765), (1651, 17175), (1905, 14885), (2977, 9525), (3175, 8931), (3435, 8255), (4953, 5725)]