81993060

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{16871}}^1$

素因数の和:16895

約数の個数: 72

約数和(自身を含む): 257939136

約数和(自身を除く): 175946076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 16871, 33742, 50613, 67484, 84355, 101226, 151839, 168710, 202452, 253065, 303678, 337420, 455517, 506130, 607356, 759195, 911034, 1012260, 1366551, 1518390, 1822068, 2277585, 2733102, 3036780, 4099653, 4555170, 5466204, 6832755, 8199306, 9110340, 13665510, 16398612, 20498265, 27331020, 40996530, 81993060]

約数ペア:

[(1, 81993060), (2, 40996530), (3, 27331020), (4, 20498265), (5, 16398612), (6, 13665510), (9, 9110340), (10, 8199306), (12, 6832755), (15, 5466204), (18, 4555170), (20, 4099653), (27, 3036780), (30, 2733102), (36, 2277585), (45, 1822068), (54, 1518390), (60, 1366551), (81, 1012260), (90, 911034), (108, 759195), (135, 607356), (162, 506130), (180, 455517), (243, 337420), (270, 303678), (324, 253065), (405, 202452), (486, 168710), (540, 151839), (810, 101226), (972, 84355), (1215, 67484), (1620, 50613), (2430, 33742), (4860, 16871)]