244964120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{142421}}^1$

素因数の和:142475

約数の個数: 32

約数和(自身を含む): 563991120

約数和(自身を除く): 319027000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 142421, 284842, 569684, 712105, 1139368, 1424210, 2848420, 5696840, 6124103, 12248206, 24496412, 30620515, 48992824, 61241030, 122482060, 244964120]

約数ペア:

[(1, 244964120), (2, 122482060), (4, 61241030), (5, 48992824), (8, 30620515), (10, 24496412), (20, 12248206), (40, 6124103), (43, 5696840), (86, 2848420), (172, 1424210), (215, 1139368), (344, 712105), (430, 569684), (860, 284842), (1720, 142421)]