28900785

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 47491200

約数和(自身を除く): 18590415

約数列:

[1, 3, 5, 15, 67, 149, 193, 201, 335, 447, 579, 745, 965, 1005, 2235, 2895, 9983, 12931, 28757, 29949, 38793, 49915, 64655, 86271, 143785, 149745, 193965, 431355, 1926719, 5780157, 9633595, 28900785]

約数ペア:

[(1, 28900785), (3, 9633595), (5, 5780157), (15, 1926719), (67, 431355), (149, 193965), (193, 149745), (201, 143785), (335, 86271), (447, 64655), (579, 49915), (745, 38793), (965, 29949), (1005, 28757), (2235, 12931), (2895, 9983)]