20321296

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 40961664

約数和(自身を除く): 20640368

約数列:

[1, 2, 4, 8, 16, 47, 61, 94, 122, 188, 244, 376, 443, 488, 752, 886, 976, 1772, 2867, 3544, 5734, 7088, 11468, 20821, 22936, 27023, 41642, 45872, 54046, 83284, 108092, 166568, 216184, 333136, 432368, 1270081, 2540162, 5080324, 10160648, 20321296]

約数ペア:

[(1, 20321296), (2, 10160648), (4, 5080324), (8, 2540162), (16, 1270081), (47, 432368), (61, 333136), (94, 216184), (122, 166568), (188, 108092), (244, 83284), (376, 54046), (443, 45872), (488, 41642), (752, 27023), (886, 22936), (976, 20821), (1772, 11468), (2867, 7088), (3544, 5734)]