87943975

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 138928608

約数和(自身を除く): 50984633

約数列:

[1, 5, 7, 17, 25, 35, 41, 49, 85, 103, 119, 175, 205, 245, 287, 425, 515, 595, 697, 721, 833, 1025, 1225, 1435, 1751, 2009, 2575, 2975, 3485, 3605, 4165, 4223, 4879, 5047, 7175, 8755, 10045, 12257, 17425, 18025, 20825, 21115, 24395, 25235, 29561, 34153, 43775, 50225, 61285, 71791, 85799, 105575, 121975, 126175, 147805, 170765, 206927, 306425, 358955, 428995, 502537, 739025, 853825, 1034635, 1794775, 2144975, 2512685, 3517759, 5173175, 12563425, 17588795, 87943975]

約数ペア:

[(1, 87943975), (5, 17588795), (7, 12563425), (17, 5173175), (25, 3517759), (35, 2512685), (41, 2144975), (49, 1794775), (85, 1034635), (103, 853825), (119, 739025), (175, 502537), (205, 428995), (245, 358955), (287, 306425), (425, 206927), (515, 170765), (595, 147805), (697, 126175), (721, 121975), (833, 105575), (1025, 85799), (1225, 71791), (1435, 61285), (1751, 50225), (2009, 43775), (2575, 34153), (2975, 29561), (3485, 25235), (3605, 24395), (4165, 21115), (4223, 20825), (4879, 18025), (5047, 17425), (7175, 12257), (8755, 10045)]