72052040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{12959}}^1$

素因数の和:13109

約数の個数: 32

約数和(自身を含む): 163296000

約数和(自身を除く): 91243960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 12959, 25918, 51836, 64795, 103672, 129590, 259180, 518360, 1801301, 3602602, 7205204, 9006505, 14410408, 18013010, 36026020, 72052040]

約数ペア:

[(1, 72052040), (2, 36026020), (4, 18013010), (5, 14410408), (8, 9006505), (10, 7205204), (20, 3602602), (40, 1801301), (139, 518360), (278, 259180), (556, 129590), (695, 103672), (1112, 64795), (1390, 51836), (2780, 25918), (5560, 12959)]