81175788

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 209969760

約数和(自身を除く): 128793972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 137, 151, 218, 274, 302, 327, 411, 436, 453, 548, 604, 654, 822, 906, 981, 1233, 1308, 1359, 1644, 1812, 1962, 2466, 2718, 3924, 4932, 5436, 14933, 16459, 20687, 29866, 32918, 41374, 44799, 49377, 59732, 62061, 65836, 82748, 89598, 98754, 124122, 134397, 148131, 179196, 186183, 197508, 248244, 268794, 296262, 372366, 537588, 592524, 744732, 2254883, 4509766, 6764649, 9019532, 13529298, 20293947, 27058596, 40587894, 81175788]

約数ペア:

[(1, 81175788), (2, 40587894), (3, 27058596), (4, 20293947), (6, 13529298), (9, 9019532), (12, 6764649), (18, 4509766), (36, 2254883), (109, 744732), (137, 592524), (151, 537588), (218, 372366), (274, 296262), (302, 268794), (327, 248244), (411, 197508), (436, 186183), (453, 179196), (548, 148131), (604, 134397), (654, 124122), (822, 98754), (906, 89598), (981, 82748), (1233, 65836), (1308, 62061), (1359, 59732), (1644, 49377), (1812, 44799), (1962, 41374), (2466, 32918), (2718, 29866), (3924, 20687), (4932, 16459), (5436, 14933)]