79936000

素因数分解:

$2^9\times 5^3\times {\mathrm{1249}}^1$

素因数の和:1282

約数の個数: 80

約数和(自身を含む): 199485000

約数和(自身を除く): 119549000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 640, 800, 1000, 1249, 1280, 1600, 2000, 2498, 2560, 3200, 4000, 4996, 6245, 6400, 8000, 9992, 12490, 12800, 16000, 19984, 24980, 31225, 32000, 39968, 49960, 62450, 64000, 79936, 99920, 124900, 156125, 159872, 199840, 249800, 312250, 319744, 399680, 499600, 624500, 639488, 799360, 999200, 1249000, 1598720, 1998400, 2498000, 3197440, 3996800, 4996000, 7993600, 9992000, 15987200, 19984000, 39968000, 79936000]

約数ペア:

[(1, 79936000), (2, 39968000), (4, 19984000), (5, 15987200), (8, 9992000), (10, 7993600), (16, 4996000), (20, 3996800), (25, 3197440), (32, 2498000), (40, 1998400), (50, 1598720), (64, 1249000), (80, 999200), (100, 799360), (125, 639488), (128, 624500), (160, 499600), (200, 399680), (250, 319744), (256, 312250), (320, 249800), (400, 199840), (500, 159872), (512, 156125), (640, 124900), (800, 99920), (1000, 79936), (1249, 64000), (1280, 62450), (1600, 49960), (2000, 39968), (2498, 32000), (2560, 31225), (3200, 24980), (4000, 19984), (4996, 16000), (6245, 12800), (6400, 12490), (8000, 9992)]