71787345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 140507136

約数和(自身を除く): 68719791

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 131, 255, 307, 357, 393, 595, 655, 917, 921, 1535, 1785, 1965, 2149, 2227, 2751, 4585, 4605, 5219, 6447, 6681, 10745, 11135, 13755, 15589, 15657, 26095, 32235, 33405, 36533, 40217, 46767, 77945, 78285, 109599, 120651, 182665, 201085, 233835, 281519, 547995, 603255, 683689, 844557, 1407595, 2051067, 3418445, 4222785, 4785823, 10255335, 14357469, 23929115, 71787345]

約数ペア:

[(1, 71787345), (3, 23929115), (5, 14357469), (7, 10255335), (15, 4785823), (17, 4222785), (21, 3418445), (35, 2051067), (51, 1407595), (85, 844557), (105, 683689), (119, 603255), (131, 547995), (255, 281519), (307, 233835), (357, 201085), (393, 182665), (595, 120651), (655, 109599), (917, 78285), (921, 77945), (1535, 46767), (1785, 40217), (1965, 36533), (2149, 33405), (2227, 32235), (2751, 26095), (4585, 15657), (4605, 15589), (5219, 13755), (6447, 11135), (6681, 10745)]