68978000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1$

素因数の和:422

約数の個数: 160

約数和(自身を含む): 205820160

約数和(自身を除く): 136842160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 125, 130, 140, 175, 182, 200, 208, 250, 260, 280, 325, 350, 364, 379, 400, 455, 500, 520, 560, 650, 700, 728, 758, 875, 910, 1000, 1040, 1300, 1400, 1456, 1516, 1625, 1750, 1820, 1895, 2000, 2275, 2600, 2653, 2800, 3032, 3250, 3500, 3640, 3790, 4550, 4927, 5200, 5306, 6064, 6500, 7000, 7280, 7580, 9100, 9475, 9854, 10612, 11375, 13000, 13265, 14000, 15160, 18200, 18950, 19708, 21224, 22750, 24635, 26000, 26530, 30320, 34489, 36400, 37900, 39416, 42448, 45500, 47375, 49270, 53060, 66325, 68978, 75800, 78832, 91000, 94750, 98540, 106120, 123175, 132650, 137956, 151600, 172445, 182000, 189500, 197080, 212240, 246350, 265300, 275912, 331625, 344890, 379000, 394160, 492700, 530600, 551824, 615875, 663250, 689780, 758000, 862225, 985400, 1061200, 1231750, 1326500, 1379560, 1724450, 1970800, 2463500, 2653000, 2759120, 3448900, 4311125, 4927000, 5306000, 6897800, 8622250, 9854000, 13795600, 17244500, 34489000, 68978000]

約数ペア:

[(1, 68978000), (2, 34489000), (4, 17244500), (5, 13795600), (7, 9854000), (8, 8622250), (10, 6897800), (13, 5306000), (14, 4927000), (16, 4311125), (20, 3448900), (25, 2759120), (26, 2653000), (28, 2463500), (35, 1970800), (40, 1724450), (50, 1379560), (52, 1326500), (56, 1231750), (65, 1061200), (70, 985400), (80, 862225), (91, 758000), (100, 689780), (104, 663250), (112, 615875), (125, 551824), (130, 530600), (140, 492700), (175, 394160), (182, 379000), (200, 344890), (208, 331625), (250, 275912), (260, 265300), (280, 246350), (325, 212240), (350, 197080), (364, 189500), (379, 182000), (400, 172445), (455, 151600), (500, 137956), (520, 132650), (560, 123175), (650, 106120), (700, 98540), (728, 94750), (758, 91000), (875, 78832), (910, 75800), (1000, 68978), (1040, 66325), (1300, 53060), (1400, 49270), (1456, 47375), (1516, 45500), (1625, 42448), (1750, 39416), (1820, 37900), (1895, 36400), (2000, 34489), (2275, 30320), (2600, 26530), (2653, 26000), (2800, 24635), (3032, 22750), (3250, 21224), (3500, 19708), (3640, 18950), (3790, 18200), (4550, 15160), (4927, 14000), (5200, 13265), (5306, 13000), (6064, 11375), (6500, 10612), (7000, 9854), (7280, 9475), (7580, 9100)]