640966704785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{13553}}^1$

素因数の和:13946

約数の個数: 64

約数和(自身を含む): 878299200000

約数和(自身を除く): 237332495215

約数列:

[1, 5, 11, 29, 55, 145, 149, 199, 319, 745, 995, 1595, 1639, 2189, 4321, 5771, 8195, 10945, 13553, 21605, 28855, 29651, 47531, 63481, 67765, 148255, 149083, 237655, 317405, 326161, 393037, 745415, 859879, 1630805, 1965185, 2019397, 2697047, 4299395, 4323407, 9458669, 10096985, 13485235, 21617035, 22213367, 29667517, 47293345, 58562513, 78214363, 111066835, 148337585, 292812565, 391071815, 401860003, 644187643, 860357993, 2009300015, 3220938215, 4301789965, 4420460033, 11653940087, 22102300165, 58269700435, 128193340957, 640966704785]

約数ペア:

[(1, 640966704785), (5, 128193340957), (11, 58269700435), (29, 22102300165), (55, 11653940087), (145, 4420460033), (149, 4301789965), (199, 3220938215), (319, 2009300015), (745, 860357993), (995, 644187643), (1595, 401860003), (1639, 391071815), (2189, 292812565), (4321, 148337585), (5771, 111066835), (8195, 78214363), (10945, 58562513), (13553, 47293345), (21605, 29667517), (28855, 22213367), (29651, 21617035), (47531, 13485235), (63481, 10096985), (67765, 9458669), (148255, 4323407), (149083, 4299395), (237655, 2697047), (317405, 2019397), (326161, 1965185), (393037, 1630805), (745415, 859879)]