387345

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:70

約数の個数: 48

約数和(自身を含む): 787968

約数和(自身を除く): 400623

約数列:

[1, 3, 5, 7, 15, 17, 21, 31, 35, 49, 51, 85, 93, 105, 119, 147, 155, 217, 245, 255, 357, 465, 527, 595, 651, 735, 833, 1085, 1519, 1581, 1785, 2499, 2635, 3255, 3689, 4165, 4557, 7595, 7905, 11067, 12495, 18445, 22785, 25823, 55335, 77469, 129115, 387345]

約数ペア:

[(1, 387345), (3, 129115), (5, 77469), (7, 55335), (15, 25823), (17, 22785), (21, 18445), (31, 12495), (35, 11067), (49, 7905), (51, 7595), (85, 4557), (93, 4165), (105, 3689), (119, 3255), (147, 2635), (155, 2499), (217, 1785), (245, 1581), (255, 1519), (357, 1085), (465, 833), (527, 735), (595, 651)]