64687280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115513}}^1$

素因数の和:115533

約数の個数: 40

約数和(自身を含む): 171884832

約数和(自身を除く): 107197552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115513, 231026, 462052, 577565, 808591, 924104, 1155130, 1617182, 1848208, 2310260, 3234364, 4042955, 4620520, 6468728, 8085910, 9241040, 12937456, 16171820, 32343640, 64687280]

約数ペア:

[(1, 64687280), (2, 32343640), (4, 16171820), (5, 12937456), (7, 9241040), (8, 8085910), (10, 6468728), (14, 4620520), (16, 4042955), (20, 3234364), (28, 2310260), (35, 1848208), (40, 1617182), (56, 1155130), (70, 924104), (80, 808591), (112, 577565), (140, 462052), (280, 231026), (560, 115513)]