81730620

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 261975168

約数和(自身を除く): 180244548

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, 243, 251, 268, 270, 324, 335, 402, 405, 486, 502, 540, 603, 670, 753, 804, 810, 972, 1004, 1005, 1206, 1215, 1255, 1340, 1506, 1620, 1809, 2010, 2259, 2412, 2430, 2510, 3012, 3015, 3618, 3765, 4020, 4518, 4860, 5020, 5427, 6030, 6777, 7236, 7530, 9036, 9045, 10854, 11295, 12060, 13554, 15060, 16281, 16817, 18090, 20331, 21708, 22590, 27108, 27135, 32562, 33634, 33885, 36180, 40662, 45180, 50451, 54270, 60993, 65124, 67268, 67770, 81324, 81405, 84085, 100902, 101655, 108540, 121986, 135540, 151353, 162810, 168170, 201804, 203310, 243972, 252255, 302706, 304965, 325620, 336340, 406620, 454059, 504510, 605412, 609930, 756765, 908118, 1009020, 1219860, 1362177, 1513530, 1816236, 2270295, 2724354, 3027060, 4086531, 4540590, 5448708, 6810885, 8173062, 9081180, 13621770, 16346124, 20432655, 27243540, 40865310, 81730620]

約数ペア:

[(1, 81730620), (2, 40865310), (3, 27243540), (4, 20432655), (5, 16346124), (6, 13621770), (9, 9081180), (10, 8173062), (12, 6810885), (15, 5448708), (18, 4540590), (20, 4086531), (27, 3027060), (30, 2724354), (36, 2270295), (45, 1816236), (54, 1513530), (60, 1362177), (67, 1219860), (81, 1009020), (90, 908118), (108, 756765), (134, 609930), (135, 605412), (162, 504510), (180, 454059), (201, 406620), (243, 336340), (251, 325620), (268, 304965), (270, 302706), (324, 252255), (335, 243972), (402, 203310), (405, 201804), (486, 168170), (502, 162810), (540, 151353), (603, 135540), (670, 121986), (753, 108540), (804, 101655), (810, 100902), (972, 84085), (1004, 81405), (1005, 81324), (1206, 67770), (1215, 67268), (1255, 65124), (1340, 60993), (1506, 54270), (1620, 50451), (1809, 45180), (2010, 40662), (2259, 36180), (2412, 33885), (2430, 33634), (2510, 32562), (3012, 27135), (3015, 27108), (3618, 22590), (3765, 21708), (4020, 20331), (4518, 18090), (4860, 16817), (5020, 16281), (5427, 15060), (6030, 13554), (6777, 12060), (7236, 11295), (7530, 10854), (9036, 9045)]