198915500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:409

約数の個数: 144

約数和(自身を含む): 528825024

約数和(自身を除く): 329909524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 49, 50, 70, 92, 98, 100, 115, 125, 140, 161, 175, 196, 230, 245, 250, 322, 350, 353, 460, 490, 500, 575, 644, 700, 706, 805, 875, 980, 1127, 1150, 1225, 1412, 1610, 1750, 1765, 2254, 2300, 2450, 2471, 2875, 3220, 3500, 3530, 4025, 4508, 4900, 4942, 5635, 5750, 6125, 7060, 8050, 8119, 8825, 9884, 11270, 11500, 12250, 12355, 16100, 16238, 17297, 17650, 20125, 22540, 24500, 24710, 28175, 32476, 34594, 35300, 40250, 40595, 44125, 49420, 56350, 56833, 61775, 69188, 80500, 81190, 86485, 88250, 112700, 113666, 123550, 140875, 162380, 172970, 176500, 202975, 227332, 247100, 281750, 284165, 308875, 345940, 397831, 405950, 432425, 563500, 568330, 617750, 795662, 811900, 864850, 1014875, 1136660, 1235500, 1420825, 1591324, 1729700, 1989155, 2029750, 2162125, 2841650, 3978310, 4059500, 4324250, 5683300, 7104125, 7956620, 8648500, 9945775, 14208250, 19891550, 28416500, 39783100, 49728875, 99457750, 198915500]

約数ペア:

[(1, 198915500), (2, 99457750), (4, 49728875), (5, 39783100), (7, 28416500), (10, 19891550), (14, 14208250), (20, 9945775), (23, 8648500), (25, 7956620), (28, 7104125), (35, 5683300), (46, 4324250), (49, 4059500), (50, 3978310), (70, 2841650), (92, 2162125), (98, 2029750), (100, 1989155), (115, 1729700), (125, 1591324), (140, 1420825), (161, 1235500), (175, 1136660), (196, 1014875), (230, 864850), (245, 811900), (250, 795662), (322, 617750), (350, 568330), (353, 563500), (460, 432425), (490, 405950), (500, 397831), (575, 345940), (644, 308875), (700, 284165), (706, 281750), (805, 247100), (875, 227332), (980, 202975), (1127, 176500), (1150, 172970), (1225, 162380), (1412, 140875), (1610, 123550), (1750, 113666), (1765, 112700), (2254, 88250), (2300, 86485), (2450, 81190), (2471, 80500), (2875, 69188), (3220, 61775), (3500, 56833), (3530, 56350), (4025, 49420), (4508, 44125), (4900, 40595), (4942, 40250), (5635, 35300), (5750, 34594), (6125, 32476), (7060, 28175), (8050, 24710), (8119, 24500), (8825, 22540), (9884, 20125), (11270, 17650), (11500, 17297), (12250, 16238), (12355, 16100)]