81989145

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1637}}^1$

素因数の和:1711

約数の個数: 64

約数和(自身を含む): 169827840

約数和(自身を除く): 87838695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 53, 63, 105, 135, 159, 189, 265, 315, 371, 477, 795, 945, 1113, 1431, 1637, 1855, 2385, 3339, 4911, 5565, 7155, 8185, 10017, 11459, 14733, 16695, 24555, 34377, 44199, 50085, 57295, 73665, 86761, 103131, 171885, 220995, 260283, 309393, 433805, 515655, 607327, 780849, 1301415, 1546965, 1821981, 2342547, 3036635, 3904245, 5465943, 9109905, 11712735, 16397829, 27329715, 81989145]

約数ペア:

[(1, 81989145), (3, 27329715), (5, 16397829), (7, 11712735), (9, 9109905), (15, 5465943), (21, 3904245), (27, 3036635), (35, 2342547), (45, 1821981), (53, 1546965), (63, 1301415), (105, 780849), (135, 607327), (159, 515655), (189, 433805), (265, 309393), (315, 260283), (371, 220995), (477, 171885), (795, 103131), (945, 86761), (1113, 73665), (1431, 57295), (1637, 50085), (1855, 44199), (2385, 34377), (3339, 24555), (4911, 16695), (5565, 14733), (7155, 11459), (8185, 10017)]