3996800

素因数分解:

$2^7\times 5^2\times {\mathrm{1249}}^1$

素因数の和:1273

約数の個数: 48

約数和(自身を含む): 9881250

約数和(自身を除く): 5884450

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1249, 1600, 2498, 3200, 4996, 6245, 9992, 12490, 19984, 24980, 31225, 39968, 49960, 62450, 79936, 99920, 124900, 159872, 199840, 249800, 399680, 499600, 799360, 999200, 1998400, 3996800]

約数ペア:

[(1, 3996800), (2, 1998400), (4, 999200), (5, 799360), (8, 499600), (10, 399680), (16, 249800), (20, 199840), (25, 159872), (32, 124900), (40, 99920), (50, 79936), (64, 62450), (80, 49960), (100, 39968), (128, 31225), (160, 24980), (200, 19984), (320, 12490), (400, 9992), (640, 6245), (800, 4996), (1249, 3200), (1600, 2498)]