28101940225

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{787}}^1\times {\mathrm{20117}}^1$

素因数の和:20985

約数の個数: 24

約数和(自身を含む): 35383860288

約数和(自身を除く): 7281920063

約数列:

[1, 5, 25, 71, 355, 787, 1775, 3935, 19675, 20117, 55877, 100585, 279385, 502925, 1396925, 1428307, 7141535, 15832079, 35707675, 79160395, 395801975, 1124077609, 5620388045, 28101940225]

約数ペア:

[(1, 28101940225), (5, 5620388045), (25, 1124077609), (71, 395801975), (355, 79160395), (787, 35707675), (1775, 15832079), (3935, 7141535), (19675, 1428307), (20117, 1396925), (55877, 502925), (100585, 279385)]