28120000

素因数分解:

$2^6\times 5^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:88

約数の個数: 140

約数和(自身を含む): 75382120

約数和(自身を除く): 47262120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 37, 38, 40, 50, 64, 74, 76, 80, 95, 100, 125, 148, 152, 160, 185, 190, 200, 250, 296, 304, 320, 370, 380, 400, 475, 500, 592, 608, 625, 703, 740, 760, 800, 925, 950, 1000, 1184, 1216, 1250, 1406, 1480, 1520, 1600, 1850, 1900, 2000, 2368, 2375, 2500, 2812, 2960, 3040, 3515, 3700, 3800, 4000, 4625, 4750, 5000, 5624, 5920, 6080, 7030, 7400, 7600, 8000, 9250, 9500, 10000, 11248, 11840, 11875, 14060, 14800, 15200, 17575, 18500, 19000, 20000, 22496, 23125, 23750, 28120, 29600, 30400, 35150, 37000, 38000, 40000, 44992, 46250, 47500, 56240, 59200, 70300, 74000, 76000, 87875, 92500, 95000, 112480, 140600, 148000, 152000, 175750, 185000, 190000, 224960, 281200, 296000, 351500, 370000, 380000, 439375, 562400, 703000, 740000, 760000, 878750, 1124800, 1406000, 1480000, 1757500, 2812000, 3515000, 5624000, 7030000, 14060000, 28120000]

約数ペア:

[(1, 28120000), (2, 14060000), (4, 7030000), (5, 5624000), (8, 3515000), (10, 2812000), (16, 1757500), (19, 1480000), (20, 1406000), (25, 1124800), (32, 878750), (37, 760000), (38, 740000), (40, 703000), (50, 562400), (64, 439375), (74, 380000), (76, 370000), (80, 351500), (95, 296000), (100, 281200), (125, 224960), (148, 190000), (152, 185000), (160, 175750), (185, 152000), (190, 148000), (200, 140600), (250, 112480), (296, 95000), (304, 92500), (320, 87875), (370, 76000), (380, 74000), (400, 70300), (475, 59200), (500, 56240), (592, 47500), (608, 46250), (625, 44992), (703, 40000), (740, 38000), (760, 37000), (800, 35150), (925, 30400), (950, 29600), (1000, 28120), (1184, 23750), (1216, 23125), (1250, 22496), (1406, 20000), (1480, 19000), (1520, 18500), (1600, 17575), (1850, 15200), (1900, 14800), (2000, 14060), (2368, 11875), (2375, 11840), (2500, 11248), (2812, 10000), (2960, 9500), (3040, 9250), (3515, 8000), (3700, 7600), (3800, 7400), (4000, 7030), (4625, 6080), (4750, 5920), (5000, 5624)]