81609360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1567}}^1$

素因数の和:1621

約数の個数: 160

約数和(自身を含む): 298647552

約数和(自身を除く): 217038192

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1488, 1567, 1680, 1736, 1860, 2170, 2480, 2604, 3134, 3255, 3472, 3720, 4340, 4701, 5208, 6268, 6510, 7440, 7835, 8680, 9402, 10416, 10969, 12536, 13020, 15670, 17360, 18804, 21938, 23505, 25072, 26040, 31340, 32907, 37608, 43876, 47010, 48577, 52080, 54845, 62680, 65814, 75216, 87752, 94020, 97154, 109690, 125360, 131628, 145731, 164535, 175504, 188040, 194308, 219380, 242885, 263256, 291462, 329070, 340039, 376080, 388616, 438760, 485770, 526512, 582924, 658140, 680078, 728655, 777232, 877520, 971540, 1020117, 1165848, 1316280, 1360156, 1457310, 1700195, 1943080, 2040234, 2331696, 2632560, 2720312, 2914620, 3400390, 3886160, 4080468, 5100585, 5440624, 5829240, 6800780, 8160936, 10201170, 11658480, 13601560, 16321872, 20402340, 27203120, 40804680, 81609360]

約数ペア:

[(1, 81609360), (2, 40804680), (3, 27203120), (4, 20402340), (5, 16321872), (6, 13601560), (7, 11658480), (8, 10201170), (10, 8160936), (12, 6800780), (14, 5829240), (15, 5440624), (16, 5100585), (20, 4080468), (21, 3886160), (24, 3400390), (28, 2914620), (30, 2720312), (31, 2632560), (35, 2331696), (40, 2040234), (42, 1943080), (48, 1700195), (56, 1457310), (60, 1360156), (62, 1316280), (70, 1165848), (80, 1020117), (84, 971540), (93, 877520), (105, 777232), (112, 728655), (120, 680078), (124, 658140), (140, 582924), (155, 526512), (168, 485770), (186, 438760), (210, 388616), (217, 376080), (240, 340039), (248, 329070), (280, 291462), (310, 263256), (336, 242885), (372, 219380), (420, 194308), (434, 188040), (465, 175504), (496, 164535), (560, 145731), (620, 131628), (651, 125360), (744, 109690), (840, 97154), (868, 94020), (930, 87752), (1085, 75216), (1240, 65814), (1302, 62680), (1488, 54845), (1567, 52080), (1680, 48577), (1736, 47010), (1860, 43876), (2170, 37608), (2480, 32907), (2604, 31340), (3134, 26040), (3255, 25072), (3472, 23505), (3720, 21938), (4340, 18804), (4701, 17360), (5208, 15670), (6268, 13020), (6510, 12536), (7440, 10969), (7835, 10416), (8680, 9402)]