28713735

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 23178105

約数列:

[1, 3, 5, 9, 15, 41, 45, 79, 123, 197, 205, 237, 369, 395, 591, 615, 711, 985, 1185, 1773, 1845, 2955, 3239, 3555, 8077, 8865, 9717, 15563, 16195, 24231, 29151, 40385, 46689, 48585, 72693, 77815, 121155, 140067, 145755, 233445, 363465, 638083, 700335, 1914249, 3190415, 5742747, 9571245, 28713735]

約数ペア:

[(1, 28713735), (3, 9571245), (5, 5742747), (9, 3190415), (15, 1914249), (41, 700335), (45, 638083), (79, 363465), (123, 233445), (197, 145755), (205, 140067), (237, 121155), (369, 77815), (395, 72693), (591, 48585), (615, 46689), (711, 40385), (985, 29151), (1185, 24231), (1773, 16195), (1845, 15563), (2955, 9717), (3239, 8865), (3555, 8077)]