1640697855

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{15619}}^1$

素因数の和:15823

約数の個数: 32

約数和(自身を含む): 2699136000

約数和(自身を除く): 1058438145

約数列:

[1, 3, 5, 15, 47, 141, 149, 235, 447, 705, 745, 2235, 7003, 15619, 21009, 35015, 46857, 78095, 105045, 234285, 734093, 2202279, 2327231, 3670465, 6981693, 11011395, 11636155, 34908465, 109379857, 328139571, 546899285, 1640697855]

約数ペア:

[(1, 1640697855), (3, 546899285), (5, 328139571), (15, 109379857), (47, 34908465), (141, 11636155), (149, 11011395), (235, 6981693), (447, 3670465), (705, 2327231), (745, 2202279), (2235, 734093), (7003, 234285), (15619, 105045), (21009, 78095), (35015, 46857)]