4240000

素因数分解:

$2^7\times 5^4\times {\mathrm{53}}^1$

素因数の和:87

約数の個数: 80

約数和(自身を含む): 10754370

約数和(自身を除く): 6514370

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 64, 80, 100, 106, 125, 128, 160, 200, 212, 250, 265, 320, 400, 424, 500, 530, 625, 640, 800, 848, 1000, 1060, 1250, 1325, 1600, 1696, 2000, 2120, 2500, 2650, 3200, 3392, 4000, 4240, 5000, 5300, 6625, 6784, 8000, 8480, 10000, 10600, 13250, 16000, 16960, 20000, 21200, 26500, 33125, 33920, 40000, 42400, 53000, 66250, 80000, 84800, 106000, 132500, 169600, 212000, 265000, 424000, 530000, 848000, 1060000, 2120000, 4240000]

約数ペア:

[(1, 4240000), (2, 2120000), (4, 1060000), (5, 848000), (8, 530000), (10, 424000), (16, 265000), (20, 212000), (25, 169600), (32, 132500), (40, 106000), (50, 84800), (53, 80000), (64, 66250), (80, 53000), (100, 42400), (106, 40000), (125, 33920), (128, 33125), (160, 26500), (200, 21200), (212, 20000), (250, 16960), (265, 16000), (320, 13250), (400, 10600), (424, 10000), (500, 8480), (530, 8000), (625, 6784), (640, 6625), (800, 5300), (848, 5000), (1000, 4240), (1060, 4000), (1250, 3392), (1325, 3200), (1600, 2650), (1696, 2500), (2000, 2120)]