3130280

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 7106400

約数和(自身を除く): 3976120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 563, 695, 1112, 1126, 1390, 2252, 2780, 2815, 4504, 5560, 5630, 11260, 22520, 78257, 156514, 313028, 391285, 626056, 782570, 1565140, 3130280]

約数ペア:

[(1, 3130280), (2, 1565140), (4, 782570), (5, 626056), (8, 391285), (10, 313028), (20, 156514), (40, 78257), (139, 22520), (278, 11260), (556, 5630), (563, 5560), (695, 4504), (1112, 2815), (1126, 2780), (1390, 2252)]