127978420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{757}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 275063040

約数和(自身を除く): 147084620

約数列:

[1, 2, 4, 5, 10, 20, 79, 107, 158, 214, 316, 395, 428, 535, 757, 790, 1070, 1514, 1580, 2140, 3028, 3785, 7570, 8453, 15140, 16906, 33812, 42265, 59803, 80999, 84530, 119606, 161998, 169060, 239212, 299015, 323996, 404995, 598030, 809990, 1196060, 1619980, 6398921, 12797842, 25595684, 31994605, 63989210, 127978420]

約数ペア:

[(1, 127978420), (2, 63989210), (4, 31994605), (5, 25595684), (10, 12797842), (20, 6398921), (79, 1619980), (107, 1196060), (158, 809990), (214, 598030), (316, 404995), (395, 323996), (428, 299015), (535, 239212), (757, 169060), (790, 161998), (1070, 119606), (1514, 84530), (1580, 80999), (2140, 59803), (3028, 42265), (3785, 33812), (7570, 16906), (8453, 15140)]