81513540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{751}}^1$

素因数の和:839

約数の個数: 120

約数和(自身を含む): 259873152

約数和(自身を除く): 178359612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 67, 81, 90, 108, 134, 135, 162, 180, 201, 268, 270, 324, 335, 402, 405, 540, 603, 670, 751, 804, 810, 1005, 1206, 1340, 1502, 1620, 1809, 2010, 2253, 2412, 3004, 3015, 3618, 3755, 4020, 4506, 5427, 6030, 6759, 7236, 7510, 9012, 9045, 10854, 11265, 12060, 13518, 15020, 18090, 20277, 21708, 22530, 27036, 27135, 33795, 36180, 40554, 45060, 50317, 54270, 60831, 67590, 81108, 100634, 101385, 108540, 121662, 135180, 150951, 201268, 202770, 243324, 251585, 301902, 304155, 405540, 452853, 503170, 603804, 608310, 754755, 905706, 1006340, 1216620, 1358559, 1509510, 1811412, 2264265, 2717118, 3019020, 4075677, 4528530, 5434236, 6792795, 8151354, 9057060, 13585590, 16302708, 20378385, 27171180, 40756770, 81513540]

約数ペア:

[(1, 81513540), (2, 40756770), (3, 27171180), (4, 20378385), (5, 16302708), (6, 13585590), (9, 9057060), (10, 8151354), (12, 6792795), (15, 5434236), (18, 4528530), (20, 4075677), (27, 3019020), (30, 2717118), (36, 2264265), (45, 1811412), (54, 1509510), (60, 1358559), (67, 1216620), (81, 1006340), (90, 905706), (108, 754755), (134, 608310), (135, 603804), (162, 503170), (180, 452853), (201, 405540), (268, 304155), (270, 301902), (324, 251585), (335, 243324), (402, 202770), (405, 201268), (540, 150951), (603, 135180), (670, 121662), (751, 108540), (804, 101385), (810, 100634), (1005, 81108), (1206, 67590), (1340, 60831), (1502, 54270), (1620, 50317), (1809, 45060), (2010, 40554), (2253, 36180), (2412, 33795), (3004, 27135), (3015, 27036), (3618, 22530), (3755, 21708), (4020, 20277), (4506, 18090), (5427, 15020), (6030, 13518), (6759, 12060), (7236, 11265), (7510, 10854), (9012, 9045)]