248930560

素因数分解:

$2^8\times 5^1\times {\mathrm{439}}^1\times {\mathrm{443}}^1$

素因数の和:903

約数の個数: 72

約数和(自身を含む): 598973760

約数和(自身を除く): 350043200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 439, 443, 640, 878, 886, 1280, 1756, 1772, 2195, 2215, 3512, 3544, 4390, 4430, 7024, 7088, 8780, 8860, 14048, 14176, 17560, 17720, 28096, 28352, 35120, 35440, 56192, 56704, 70240, 70880, 112384, 113408, 140480, 141760, 194477, 280960, 283520, 388954, 561920, 567040, 777908, 972385, 1555816, 1944770, 3111632, 3889540, 6223264, 7779080, 12446528, 15558160, 24893056, 31116320, 49786112, 62232640, 124465280, 248930560]

約数ペア:

[(1, 248930560), (2, 124465280), (4, 62232640), (5, 49786112), (8, 31116320), (10, 24893056), (16, 15558160), (20, 12446528), (32, 7779080), (40, 6223264), (64, 3889540), (80, 3111632), (128, 1944770), (160, 1555816), (256, 972385), (320, 777908), (439, 567040), (443, 561920), (640, 388954), (878, 283520), (886, 280960), (1280, 194477), (1756, 141760), (1772, 140480), (2195, 113408), (2215, 112384), (3512, 70880), (3544, 70240), (4390, 56704), (4430, 56192), (7024, 35440), (7088, 35120), (8780, 28352), (8860, 28096), (14048, 17720), (14176, 17560)]