81501480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 192

約数和(自身を含む): 280051200

約数和(自身を除く): 198549720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 67, 72, 90, 93, 109, 120, 124, 134, 155, 180, 186, 201, 218, 248, 268, 279, 310, 327, 335, 360, 372, 402, 436, 465, 536, 545, 558, 603, 620, 654, 670, 744, 804, 872, 930, 981, 1005, 1090, 1116, 1206, 1240, 1308, 1340, 1395, 1608, 1635, 1860, 1962, 2010, 2077, 2180, 2232, 2412, 2616, 2680, 2790, 3015, 3270, 3379, 3720, 3924, 4020, 4154, 4360, 4824, 4905, 5580, 6030, 6231, 6540, 6758, 7303, 7848, 8040, 8308, 9810, 10137, 10385, 11160, 12060, 12462, 13080, 13516, 14606, 16616, 16895, 18693, 19620, 20274, 20770, 21909, 24120, 24924, 27032, 29212, 30411, 31155, 33790, 36515, 37386, 39240, 40548, 41540, 43818, 49848, 50685, 58424, 60822, 62310, 65727, 67580, 73030, 74772, 81096, 83080, 87636, 93465, 101370, 109545, 121644, 124620, 131454, 135160, 146060, 149544, 152055, 175272, 186930, 202740, 219090, 226393, 243288, 249240, 262908, 292120, 304110, 328635, 373860, 405480, 438180, 452786, 525816, 608220, 657270, 679179, 747720, 876360, 905572, 1131965, 1216440, 1314540, 1358358, 1811144, 2037537, 2263930, 2629080, 2716716, 3395895, 4075074, 4527860, 5433432, 6791790, 8150148, 9055720, 10187685, 13583580, 16300296, 20375370, 27167160, 40750740, 81501480]

約数ペア:

[(1, 81501480), (2, 40750740), (3, 27167160), (4, 20375370), (5, 16300296), (6, 13583580), (8, 10187685), (9, 9055720), (10, 8150148), (12, 6791790), (15, 5433432), (18, 4527860), (20, 4075074), (24, 3395895), (30, 2716716), (31, 2629080), (36, 2263930), (40, 2037537), (45, 1811144), (60, 1358358), (62, 1314540), (67, 1216440), (72, 1131965), (90, 905572), (93, 876360), (109, 747720), (120, 679179), (124, 657270), (134, 608220), (155, 525816), (180, 452786), (186, 438180), (201, 405480), (218, 373860), (248, 328635), (268, 304110), (279, 292120), (310, 262908), (327, 249240), (335, 243288), (360, 226393), (372, 219090), (402, 202740), (436, 186930), (465, 175272), (536, 152055), (545, 149544), (558, 146060), (603, 135160), (620, 131454), (654, 124620), (670, 121644), (744, 109545), (804, 101370), (872, 93465), (930, 87636), (981, 83080), (1005, 81096), (1090, 74772), (1116, 73030), (1206, 67580), (1240, 65727), (1308, 62310), (1340, 60822), (1395, 58424), (1608, 50685), (1635, 49848), (1860, 43818), (1962, 41540), (2010, 40548), (2077, 39240), (2180, 37386), (2232, 36515), (2412, 33790), (2616, 31155), (2680, 30411), (2790, 29212), (3015, 27032), (3270, 24924), (3379, 24120), (3720, 21909), (3924, 20770), (4020, 20274), (4154, 19620), (4360, 18693), (4824, 16895), (4905, 16616), (5580, 14606), (6030, 13516), (6231, 13080), (6540, 12462), (6758, 12060), (7303, 11160), (7848, 10385), (8040, 10137), (8308, 9810)]