28879339105

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1\times {\mathrm{2647}}^1$

素因数の和:3217

約数の個数: 32

約数和(自身を含む): 35722833408

約数和(自身を除く): 6843494303

約数列:

[1, 5, 71, 73, 355, 365, 421, 2105, 2647, 5183, 13235, 25915, 29891, 30733, 149455, 153665, 187937, 193231, 939685, 966155, 1114387, 2182043, 5571935, 10910215, 13719401, 68597005, 79121477, 81350251, 395607385, 406751255, 5775867821, 28879339105]

約数ペア:

[(1, 28879339105), (5, 5775867821), (71, 406751255), (73, 395607385), (355, 81350251), (365, 79121477), (421, 68597005), (2105, 13719401), (2647, 10910215), (5183, 5571935), (13235, 2182043), (25915, 1114387), (29891, 966155), (30733, 939685), (149455, 193231), (153665, 187937)]