128801720

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{54577}}^1$

素因数の和:54647

約数の個数: 32

約数和(自身を含む): 294721200

約数和(自身を除く): 165919480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 54577, 109154, 218308, 272885, 436616, 545770, 1091540, 2183080, 3220043, 6440086, 12880172, 16100215, 25760344, 32200430, 64400860, 128801720]

約数ペア:

[(1, 128801720), (2, 64400860), (4, 32200430), (5, 25760344), (8, 16100215), (10, 12880172), (20, 6440086), (40, 3220043), (59, 2183080), (118, 1091540), (236, 545770), (295, 436616), (472, 272885), (590, 218308), (1180, 109154), (2360, 54577)]