49960000

素因数分解:

$2^6\times 5^4\times {\mathrm{1249}}^1$

素因数の和:1281

約数の個数: 70

約数和(自身を含む): 123983750

約数和(自身を除く): 74023750

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1249, 1250, 1600, 2000, 2498, 2500, 4000, 4996, 5000, 6245, 8000, 9992, 10000, 12490, 19984, 20000, 24980, 31225, 39968, 40000, 49960, 62450, 79936, 99920, 124900, 156125, 199840, 249800, 312250, 399680, 499600, 624500, 780625, 999200, 1249000, 1561250, 1998400, 2498000, 3122500, 4996000, 6245000, 9992000, 12490000, 24980000, 49960000]

約数ペア:

[(1, 49960000), (2, 24980000), (4, 12490000), (5, 9992000), (8, 6245000), (10, 4996000), (16, 3122500), (20, 2498000), (25, 1998400), (32, 1561250), (40, 1249000), (50, 999200), (64, 780625), (80, 624500), (100, 499600), (125, 399680), (160, 312250), (200, 249800), (250, 199840), (320, 156125), (400, 124900), (500, 99920), (625, 79936), (800, 62450), (1000, 49960), (1249, 40000), (1250, 39968), (1600, 31225), (2000, 24980), (2498, 20000), (2500, 19984), (4000, 12490), (4996, 10000), (5000, 9992), (6245, 8000)]