4242280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 11088000

約数和(自身を除く): 6845720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 139, 140, 218, 278, 280, 436, 545, 556, 695, 763, 872, 973, 1090, 1112, 1390, 1526, 1946, 2180, 2780, 3052, 3815, 3892, 4360, 4865, 5560, 6104, 7630, 7784, 9730, 15151, 15260, 19460, 30302, 30520, 38920, 60604, 75755, 106057, 121208, 151510, 212114, 303020, 424228, 530285, 606040, 848456, 1060570, 2121140, 4242280]

約数ペア:

[(1, 4242280), (2, 2121140), (4, 1060570), (5, 848456), (7, 606040), (8, 530285), (10, 424228), (14, 303020), (20, 212114), (28, 151510), (35, 121208), (40, 106057), (56, 75755), (70, 60604), (109, 38920), (139, 30520), (140, 30302), (218, 19460), (278, 15260), (280, 15151), (436, 9730), (545, 7784), (556, 7630), (695, 6104), (763, 5560), (872, 4865), (973, 4360), (1090, 3892), (1112, 3815), (1390, 3052), (1526, 2780), (1946, 2180)]