64710700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 146084400

約数和(自身を除く): 81373700

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 101, 149, 172, 202, 215, 298, 404, 430, 505, 596, 745, 860, 1010, 1075, 1490, 2020, 2150, 2525, 2980, 3725, 4300, 4343, 5050, 6407, 7450, 8686, 10100, 12814, 14900, 15049, 17372, 21715, 25628, 30098, 32035, 43430, 60196, 64070, 75245, 86860, 108575, 128140, 150490, 160175, 217150, 300980, 320350, 376225, 434300, 640700, 647107, 752450, 1294214, 1504900, 2588428, 3235535, 6471070, 12942140, 16177675, 32355350, 64710700]

約数ペア:

[(1, 64710700), (2, 32355350), (4, 16177675), (5, 12942140), (10, 6471070), (20, 3235535), (25, 2588428), (43, 1504900), (50, 1294214), (86, 752450), (100, 647107), (101, 640700), (149, 434300), (172, 376225), (202, 320350), (215, 300980), (298, 217150), (404, 160175), (430, 150490), (505, 128140), (596, 108575), (745, 86860), (860, 75245), (1010, 64070), (1075, 60196), (1490, 43430), (2020, 32035), (2150, 30098), (2525, 25628), (2980, 21715), (3725, 17372), (4300, 15049), (4343, 14900), (5050, 12814), (6407, 10100), (7450, 8686)]