20726512

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 41691776

約数和(自身を除く): 20965264

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 157, 223, 296, 314, 446, 592, 628, 892, 1256, 1784, 2512, 3568, 5809, 8251, 11618, 16502, 23236, 33004, 35011, 46472, 66008, 70022, 92944, 132016, 140044, 280088, 560176, 1295407, 2590814, 5181628, 10363256, 20726512]

約数ペア:

[(1, 20726512), (2, 10363256), (4, 5181628), (8, 2590814), (16, 1295407), (37, 560176), (74, 280088), (148, 140044), (157, 132016), (223, 92944), (296, 70022), (314, 66008), (446, 46472), (592, 35011), (628, 33004), (892, 23236), (1256, 16502), (1784, 11618), (2512, 8251), (3568, 5809)]