12390980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1321}}^1$

素因数の和:1404

約数の個数: 48

約数和(自身を含む): 30205056

約数和(自身を除く): 17814076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1321, 1340, 1876, 2345, 2642, 4690, 5284, 6605, 9247, 9380, 13210, 18494, 26420, 36988, 46235, 88507, 92470, 177014, 184940, 354028, 442535, 619549, 885070, 1239098, 1770140, 2478196, 3097745, 6195490, 12390980]

約数ペア:

[(1, 12390980), (2, 6195490), (4, 3097745), (5, 2478196), (7, 1770140), (10, 1239098), (14, 885070), (20, 619549), (28, 442535), (35, 354028), (67, 184940), (70, 177014), (134, 92470), (140, 88507), (268, 46235), (335, 36988), (469, 26420), (670, 18494), (938, 13210), (1321, 9380), (1340, 9247), (1876, 6605), (2345, 5284), (2642, 4690)]