28354025

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 42973440

約数和(自身を除く): 14619415

約数列:

[1, 5, 7, 25, 29, 35, 37, 145, 151, 175, 185, 203, 259, 725, 755, 925, 1015, 1057, 1073, 1295, 3775, 4379, 5075, 5285, 5365, 5587, 6475, 7511, 21895, 26425, 26825, 27935, 30653, 37555, 39109, 109475, 139675, 153265, 162023, 187775, 195545, 766325, 810115, 977725, 1134161, 4050575, 5670805, 28354025]

約数ペア:

[(1, 28354025), (5, 5670805), (7, 4050575), (25, 1134161), (29, 977725), (35, 810115), (37, 766325), (145, 195545), (151, 187775), (175, 162023), (185, 153265), (203, 139675), (259, 109475), (725, 39109), (755, 37555), (925, 30653), (1015, 27935), (1057, 26825), (1073, 26425), (1295, 21895), (3775, 7511), (4379, 6475), (5075, 5587), (5285, 5365)]