82790120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{647}}^1$

素因数の和:1122

約数の個数: 64

約数和(自身を含む): 213684480

約数和(自身を除く): 130894360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 457, 647, 914, 1294, 1828, 2285, 2588, 3199, 3235, 3656, 4529, 4570, 5176, 6398, 6470, 9058, 9140, 12796, 12940, 15995, 18116, 18280, 22645, 25592, 25880, 31990, 36232, 45290, 63980, 90580, 127960, 181160, 295679, 591358, 1182716, 1478395, 2069753, 2365432, 2956790, 4139506, 5913580, 8279012, 10348765, 11827160, 16558024, 20697530, 41395060, 82790120]

約数ペア:

[(1, 82790120), (2, 41395060), (4, 20697530), (5, 16558024), (7, 11827160), (8, 10348765), (10, 8279012), (14, 5913580), (20, 4139506), (28, 2956790), (35, 2365432), (40, 2069753), (56, 1478395), (70, 1182716), (140, 591358), (280, 295679), (457, 181160), (647, 127960), (914, 90580), (1294, 63980), (1828, 45290), (2285, 36232), (2588, 31990), (3199, 25880), (3235, 25592), (3656, 22645), (4529, 18280), (4570, 18116), (5176, 15995), (6398, 12940), (6470, 12796), (9058, 9140)]