81645480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:384

約数の個数: 192

約数和(自身を含む): 306633600

約数和(自身を除く): 224988120

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, 179, 180, 181, 210, 252, 280, 315, 358, 360, 362, 420, 504, 537, 543, 630, 716, 724, 840, 895, 905, 1074, 1086, 1253, 1260, 1267, 1432, 1448, 1611, 1629, 1790, 1810, 2148, 2172, 2506, 2520, 2534, 2685, 2715, 3222, 3258, 3580, 3620, 3759, 3801, 4296, 4344, 5012, 5068, 5370, 5430, 6265, 6335, 6444, 6516, 7160, 7240, 7518, 7602, 8055, 8145, 10024, 10136, 10740, 10860, 11277, 11403, 12530, 12670, 12888, 13032, 15036, 15204, 16110, 16290, 18795, 19005, 21480, 21720, 22554, 22806, 25060, 25340, 30072, 30408, 32220, 32399, 32580, 37590, 38010, 45108, 45612, 50120, 50680, 56385, 57015, 64440, 64798, 65160, 75180, 76020, 90216, 91224, 97197, 112770, 114030, 129596, 150360, 152040, 161995, 194394, 225540, 226793, 228060, 259192, 291591, 323990, 388788, 451080, 453586, 456120, 485985, 583182, 647980, 680379, 777576, 907172, 971970, 1133965, 1166364, 1295960, 1360758, 1457955, 1814344, 1943940, 2041137, 2267930, 2332728, 2721516, 2915910, 3401895, 3887880, 4082274, 4535860, 5443032, 5831820, 6803790, 8164548, 9071720, 10205685, 11663640, 13607580, 16329096, 20411370, 27215160, 40822740, 81645480]

約数ペア:

[(1, 81645480), (2, 40822740), (3, 27215160), (4, 20411370), (5, 16329096), (6, 13607580), (7, 11663640), (8, 10205685), (9, 9071720), (10, 8164548), (12, 6803790), (14, 5831820), (15, 5443032), (18, 4535860), (20, 4082274), (21, 3887880), (24, 3401895), (28, 2915910), (30, 2721516), (35, 2332728), (36, 2267930), (40, 2041137), (42, 1943940), (45, 1814344), (56, 1457955), (60, 1360758), (63, 1295960), (70, 1166364), (72, 1133965), (84, 971970), (90, 907172), (105, 777576), (120, 680379), (126, 647980), (140, 583182), (168, 485985), (179, 456120), (180, 453586), (181, 451080), (210, 388788), (252, 323990), (280, 291591), (315, 259192), (358, 228060), (360, 226793), (362, 225540), (420, 194394), (504, 161995), (537, 152040), (543, 150360), (630, 129596), (716, 114030), (724, 112770), (840, 97197), (895, 91224), (905, 90216), (1074, 76020), (1086, 75180), (1253, 65160), (1260, 64798), (1267, 64440), (1432, 57015), (1448, 56385), (1611, 50680), (1629, 50120), (1790, 45612), (1810, 45108), (2148, 38010), (2172, 37590), (2506, 32580), (2520, 32399), (2534, 32220), (2685, 30408), (2715, 30072), (3222, 25340), (3258, 25060), (3580, 22806), (3620, 22554), (3759, 21720), (3801, 21480), (4296, 19005), (4344, 18795), (5012, 16290), (5068, 16110), (5370, 15204), (5430, 15036), (6265, 13032), (6335, 12888), (6444, 12670), (6516, 12530), (7160, 11403), (7240, 11277), (7518, 10860), (7602, 10740), (8055, 10136), (8145, 10024)]