640016835

素因数分解:

$3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{1439}}^1$

素因数の和:1795

約数の個数: 32

約数和(自身を含む): 1036800000

約数和(自身を除く): 396783165

約数列:

[1, 3, 5, 15, 149, 199, 447, 597, 745, 995, 1439, 2235, 2985, 4317, 7195, 21585, 29651, 88953, 148255, 214411, 286361, 444765, 643233, 859083, 1072055, 1431805, 3216165, 4295415, 42667789, 128003367, 213338945, 640016835]

約数ペア:

[(1, 640016835), (3, 213338945), (5, 128003367), (15, 42667789), (149, 4295415), (199, 3216165), (447, 1431805), (597, 1072055), (745, 859083), (995, 643233), (1439, 444765), (2235, 286361), (2985, 214411), (4317, 148255), (7195, 88953), (21585, 29651)]