81738405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{5521}}^1$

素因数の和:5586

約数の個数: 48

約数和(自身を含む): 165394944

約数和(自身を除く): 83656539

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 63, 105, 141, 235, 315, 329, 423, 705, 987, 1645, 2115, 2961, 4935, 5521, 14805, 16563, 27605, 38647, 49689, 82815, 115941, 193235, 248445, 259487, 347823, 579705, 778461, 1297435, 1739115, 1816409, 2335383, 3892305, 5449227, 9082045, 11676915, 16347681, 27246135, 81738405]

約数ペア:

[(1, 81738405), (3, 27246135), (5, 16347681), (7, 11676915), (9, 9082045), (15, 5449227), (21, 3892305), (35, 2335383), (45, 1816409), (47, 1739115), (63, 1297435), (105, 778461), (141, 579705), (235, 347823), (315, 259487), (329, 248445), (423, 193235), (705, 115941), (987, 82815), (1645, 49689), (2115, 38647), (2961, 27605), (4935, 16563), (5521, 14805)]