279996040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{50359}}^1$

素因数の和:50509

約数の個数: 32

約数和(自身を含む): 634536000

約数和(自身を除く): 354539960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 50359, 100718, 201436, 251795, 402872, 503590, 1007180, 2014360, 6999901, 13999802, 27999604, 34999505, 55999208, 69999010, 139998020, 279996040]

約数ペア:

[(1, 279996040), (2, 139998020), (4, 69999010), (5, 55999208), (8, 34999505), (10, 27999604), (20, 13999802), (40, 6999901), (139, 2014360), (278, 1007180), (556, 503590), (695, 402872), (1112, 251795), (1390, 201436), (2780, 100718), (5560, 50359)]