15318275

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 24284160

約数和(自身を除く): 8965885

約数列:

[1, 5, 7, 17, 19, 25, 35, 85, 95, 119, 133, 175, 271, 323, 425, 475, 595, 665, 1355, 1615, 1897, 2261, 2975, 3325, 4607, 5149, 6775, 8075, 9485, 11305, 23035, 25745, 32249, 36043, 47425, 56525, 87533, 115175, 128725, 161245, 180215, 437665, 612731, 806225, 901075, 2188325, 3063655, 15318275]

約数ペア:

[(1, 15318275), (5, 3063655), (7, 2188325), (17, 901075), (19, 806225), (25, 612731), (35, 437665), (85, 180215), (95, 161245), (119, 128725), (133, 115175), (175, 87533), (271, 56525), (323, 47425), (425, 36043), (475, 32249), (595, 25745), (665, 23035), (1355, 11305), (1615, 9485), (1897, 8075), (2261, 6775), (2975, 5149), (3325, 4607)]