81675720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{32411}}^1$

素因数の和:32435

約数の個数: 96

約数和(自身を含む): 303376320

約数和(自身を除く): 221700600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 32411, 64822, 97233, 129644, 162055, 194466, 226877, 259288, 291699, 324110, 388932, 453754, 486165, 583398, 648220, 680631, 777864, 907508, 972330, 1134385, 1166796, 1296440, 1361262, 1458495, 1815016, 1944660, 2041893, 2268770, 2333592, 2722524, 2916990, 3403155, 3889320, 4083786, 4537540, 5445048, 5833980, 6806310, 8167572, 9075080, 10209465, 11667960, 13612620, 16335144, 20418930, 27225240, 40837860, 81675720]

約数ペア:

[(1, 81675720), (2, 40837860), (3, 27225240), (4, 20418930), (5, 16335144), (6, 13612620), (7, 11667960), (8, 10209465), (9, 9075080), (10, 8167572), (12, 6806310), (14, 5833980), (15, 5445048), (18, 4537540), (20, 4083786), (21, 3889320), (24, 3403155), (28, 2916990), (30, 2722524), (35, 2333592), (36, 2268770), (40, 2041893), (42, 1944660), (45, 1815016), (56, 1458495), (60, 1361262), (63, 1296440), (70, 1166796), (72, 1134385), (84, 972330), (90, 907508), (105, 777864), (120, 680631), (126, 648220), (140, 583398), (168, 486165), (180, 453754), (210, 388932), (252, 324110), (280, 291699), (315, 259288), (360, 226877), (420, 194466), (504, 162055), (630, 129644), (840, 97233), (1260, 64822), (2520, 32411)]