81543420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64717}}^1$

素因数の和:64739

約数の個数: 72

約数和(自身を含む): 282688224

約数和(自身を除く): 201144804

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 64717, 129434, 194151, 258868, 323585, 388302, 453019, 582453, 647170, 776604, 906038, 970755, 1164906, 1294340, 1359057, 1812076, 1941510, 2265095, 2329812, 2718114, 2912265, 3883020, 4077171, 4530190, 5436228, 5824530, 6795285, 8154342, 9060380, 11649060, 13590570, 16308684, 20385855, 27181140, 40771710, 81543420]

約数ペア:

[(1, 81543420), (2, 40771710), (3, 27181140), (4, 20385855), (5, 16308684), (6, 13590570), (7, 11649060), (9, 9060380), (10, 8154342), (12, 6795285), (14, 5824530), (15, 5436228), (18, 4530190), (20, 4077171), (21, 3883020), (28, 2912265), (30, 2718114), (35, 2329812), (36, 2265095), (42, 1941510), (45, 1812076), (60, 1359057), (63, 1294340), (70, 1164906), (84, 970755), (90, 906038), (105, 776604), (126, 647170), (140, 582453), (180, 453019), (210, 388302), (252, 323585), (315, 258868), (420, 194151), (630, 129434), (1260, 64717)]