12243980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4603}}^1$

素因数の和:4638

約数の個数: 48

約数和(自身を含む): 30938880

約数和(自身を除く): 18694900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 4603, 9206, 18412, 23015, 32221, 46030, 64442, 87457, 92060, 128884, 161105, 174914, 322210, 349828, 437285, 612199, 644420, 874570, 1224398, 1749140, 2448796, 3060995, 6121990, 12243980]

約数ペア:

[(1, 12243980), (2, 6121990), (4, 3060995), (5, 2448796), (7, 1749140), (10, 1224398), (14, 874570), (19, 644420), (20, 612199), (28, 437285), (35, 349828), (38, 322210), (70, 174914), (76, 161105), (95, 128884), (133, 92060), (140, 87457), (190, 64442), (266, 46030), (380, 32221), (532, 23015), (665, 18412), (1330, 9206), (2660, 4603)]