128961720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{751}}^1$

素因数の和:827

約数の個数: 160

約数和(自身を含む): 442221120

約数和(自身を除く): 313259400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 81, 90, 106, 108, 120, 135, 159, 162, 180, 212, 216, 265, 270, 318, 324, 360, 405, 424, 477, 530, 540, 636, 648, 751, 795, 810, 954, 1060, 1080, 1272, 1431, 1502, 1590, 1620, 1908, 2120, 2253, 2385, 2862, 3004, 3180, 3240, 3755, 3816, 4293, 4506, 4770, 5724, 6008, 6360, 6759, 7155, 7510, 8586, 9012, 9540, 11265, 11448, 13518, 14310, 15020, 17172, 18024, 19080, 20277, 21465, 22530, 27036, 28620, 30040, 33795, 34344, 39803, 40554, 42930, 45060, 54072, 57240, 60831, 67590, 79606, 81108, 85860, 90120, 101385, 119409, 121662, 135180, 159212, 162216, 171720, 199015, 202770, 238818, 243324, 270360, 304155, 318424, 358227, 398030, 405540, 477636, 486648, 597045, 608310, 716454, 796060, 811080, 955272, 1074681, 1194090, 1216620, 1432908, 1592120, 1791135, 2149362, 2388180, 2433240, 2865816, 3224043, 3582270, 4298724, 4776360, 5373405, 6448086, 7164540, 8597448, 10746810, 12896172, 14329080, 16120215, 21493620, 25792344, 32240430, 42987240, 64480860, 128961720]

約数ペア:

[(1, 128961720), (2, 64480860), (3, 42987240), (4, 32240430), (5, 25792344), (6, 21493620), (8, 16120215), (9, 14329080), (10, 12896172), (12, 10746810), (15, 8597448), (18, 7164540), (20, 6448086), (24, 5373405), (27, 4776360), (30, 4298724), (36, 3582270), (40, 3224043), (45, 2865816), (53, 2433240), (54, 2388180), (60, 2149362), (72, 1791135), (81, 1592120), (90, 1432908), (106, 1216620), (108, 1194090), (120, 1074681), (135, 955272), (159, 811080), (162, 796060), (180, 716454), (212, 608310), (216, 597045), (265, 486648), (270, 477636), (318, 405540), (324, 398030), (360, 358227), (405, 318424), (424, 304155), (477, 270360), (530, 243324), (540, 238818), (636, 202770), (648, 199015), (751, 171720), (795, 162216), (810, 159212), (954, 135180), (1060, 121662), (1080, 119409), (1272, 101385), (1431, 90120), (1502, 85860), (1590, 81108), (1620, 79606), (1908, 67590), (2120, 60831), (2253, 57240), (2385, 54072), (2862, 45060), (3004, 42930), (3180, 40554), (3240, 39803), (3755, 34344), (3816, 33795), (4293, 30040), (4506, 28620), (4770, 27036), (5724, 22530), (6008, 21465), (6360, 20277), (6759, 19080), (7155, 18024), (7510, 17172), (8586, 15020), (9012, 14310), (9540, 13518), (11265, 11448)]