31590440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{439}}^1$

素因数の和:714

約数の個数: 64

約数和(自身を含む): 81734400

約数和(自身を除く): 50143960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 439, 514, 878, 1028, 1285, 1756, 1799, 2056, 2195, 2570, 3073, 3512, 3598, 4390, 5140, 6146, 7196, 8780, 8995, 10280, 12292, 14392, 15365, 17560, 17990, 24584, 30730, 35980, 61460, 71960, 112823, 122920, 225646, 451292, 564115, 789761, 902584, 1128230, 1579522, 2256460, 3159044, 3948805, 4512920, 6318088, 7897610, 15795220, 31590440]

約数ペア:

[(1, 31590440), (2, 15795220), (4, 7897610), (5, 6318088), (7, 4512920), (8, 3948805), (10, 3159044), (14, 2256460), (20, 1579522), (28, 1128230), (35, 902584), (40, 789761), (56, 564115), (70, 451292), (140, 225646), (257, 122920), (280, 112823), (439, 71960), (514, 61460), (878, 35980), (1028, 30730), (1285, 24584), (1756, 17990), (1799, 17560), (2056, 15365), (2195, 14392), (2570, 12292), (3073, 10280), (3512, 8995), (3598, 8780), (4390, 7196), (5140, 6146)]