3197440

素因数分解:

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

素因数の和:1272

約数の個数: 40

約数和(自身を含む): 7672500

約数和(自身を除く): 4475060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1249, 1280, 2498, 2560, 4996, 6245, 9992, 12490, 19984, 24980, 39968, 49960, 79936, 99920, 159872, 199840, 319744, 399680, 639488, 799360, 1598720, 3197440]

約数ペア:

[(1, 3197440), (2, 1598720), (4, 799360), (5, 639488), (8, 399680), (10, 319744), (16, 199840), (20, 159872), (32, 99920), (40, 79936), (64, 49960), (80, 39968), (128, 24980), (160, 19984), (256, 12490), (320, 9992), (512, 6245), (640, 4996), (1249, 2560), (1280, 2498)]