12122020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 27297648

約数和(自身を除く): 15175628

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 353, 404, 505, 706, 1010, 1412, 1717, 1765, 2020, 3434, 3530, 6001, 6868, 7060, 8585, 12002, 17170, 24004, 30005, 34340, 35653, 60010, 71306, 120020, 142612, 178265, 356530, 606101, 713060, 1212202, 2424404, 3030505, 6061010, 12122020]

約数ペア:

[(1, 12122020), (2, 6061010), (4, 3030505), (5, 2424404), (10, 1212202), (17, 713060), (20, 606101), (34, 356530), (68, 178265), (85, 142612), (101, 120020), (170, 71306), (202, 60010), (340, 35653), (353, 34340), (404, 30005), (505, 24004), (706, 17170), (1010, 12002), (1412, 8585), (1717, 7060), (1765, 6868), (2020, 6001), (3434, 3530)]