1681251500

素因数分解:

$2^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:556

約数の個数: 96

約数和(自身を含む): 3764342400

約数和(自身を除く): 2083090900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 125, 199, 244, 250, 277, 305, 398, 500, 554, 610, 796, 995, 1108, 1220, 1385, 1525, 1990, 2770, 3050, 3980, 4975, 5540, 6100, 6925, 7625, 9950, 12139, 13850, 15250, 16897, 19900, 24278, 24875, 27700, 30500, 33794, 34625, 48556, 49750, 55123, 60695, 67588, 69250, 84485, 99500, 110246, 121390, 138500, 168970, 220492, 242780, 275615, 303475, 337940, 422425, 551230, 606950, 844850, 1102460, 1213900, 1378075, 1517375, 1689700, 2112125, 2756150, 3034750, 3362503, 4224250, 5512300, 6069500, 6725006, 6890375, 8448500, 13450012, 13780750, 16812515, 27561500, 33625030, 67250060, 84062575, 168125150, 336250300, 420312875, 840625750, 1681251500]

約数ペア:

[(1, 1681251500), (2, 840625750), (4, 420312875), (5, 336250300), (10, 168125150), (20, 84062575), (25, 67250060), (50, 33625030), (61, 27561500), (100, 16812515), (122, 13780750), (125, 13450012), (199, 8448500), (244, 6890375), (250, 6725006), (277, 6069500), (305, 5512300), (398, 4224250), (500, 3362503), (554, 3034750), (610, 2756150), (796, 2112125), (995, 1689700), (1108, 1517375), (1220, 1378075), (1385, 1213900), (1525, 1102460), (1990, 844850), (2770, 606950), (3050, 551230), (3980, 422425), (4975, 337940), (5540, 303475), (6100, 275615), (6925, 242780), (7625, 220492), (9950, 168970), (12139, 138500), (13850, 121390), (15250, 110246), (16897, 99500), (19900, 84485), (24278, 69250), (24875, 67588), (27700, 60695), (30500, 55123), (33794, 49750), (34625, 48556)]