28009625

素因数分解:

$5^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{269}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 43215120

約数和(自身を除く): 15205495

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 125, 175, 245, 269, 425, 595, 833, 875, 1225, 1345, 1883, 2125, 2975, 4165, 4573, 6125, 6725, 9415, 13181, 14875, 20825, 22865, 32011, 33625, 47075, 65905, 104125, 114325, 160055, 224077, 235375, 329525, 571625, 800275, 1120385, 1647625, 4001375, 5601925, 28009625]

約数ペア:

[(1, 28009625), (5, 5601925), (7, 4001375), (17, 1647625), (25, 1120385), (35, 800275), (49, 571625), (85, 329525), (119, 235375), (125, 224077), (175, 160055), (245, 114325), (269, 104125), (425, 65905), (595, 47075), (833, 33625), (875, 32011), (1225, 22865), (1345, 20825), (1883, 14875), (2125, 13181), (2975, 9415), (4165, 6725), (4573, 6125)]