21599280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:379

約数の個数: 120

約数和(自身を含む): 73410480

約数和(自身を除く): 51811200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 131, 144, 180, 229, 240, 262, 360, 393, 458, 524, 655, 687, 720, 786, 916, 1048, 1145, 1179, 1310, 1374, 1572, 1832, 1965, 2061, 2096, 2290, 2358, 2620, 2748, 3144, 3435, 3664, 3930, 4122, 4580, 4716, 5240, 5496, 5895, 6288, 6870, 7860, 8244, 9160, 9432, 10305, 10480, 10992, 11790, 13740, 15720, 16488, 18320, 18864, 20610, 23580, 27480, 29999, 31440, 32976, 41220, 47160, 54960, 59998, 82440, 89997, 94320, 119996, 149995, 164880, 179994, 239992, 269991, 299990, 359988, 449985, 479984, 539982, 599980, 719976, 899970, 1079964, 1199960, 1349955, 1439952, 1799940, 2159928, 2399920, 2699910, 3599880, 4319856, 5399820, 7199760, 10799640, 21599280]

約数ペア:

[(1, 21599280), (2, 10799640), (3, 7199760), (4, 5399820), (5, 4319856), (6, 3599880), (8, 2699910), (9, 2399920), (10, 2159928), (12, 1799940), (15, 1439952), (16, 1349955), (18, 1199960), (20, 1079964), (24, 899970), (30, 719976), (36, 599980), (40, 539982), (45, 479984), (48, 449985), (60, 359988), (72, 299990), (80, 269991), (90, 239992), (120, 179994), (131, 164880), (144, 149995), (180, 119996), (229, 94320), (240, 89997), (262, 82440), (360, 59998), (393, 54960), (458, 47160), (524, 41220), (655, 32976), (687, 31440), (720, 29999), (786, 27480), (916, 23580), (1048, 20610), (1145, 18864), (1179, 18320), (1310, 16488), (1374, 15720), (1572, 13740), (1832, 11790), (1965, 10992), (2061, 10480), (2096, 10305), (2290, 9432), (2358, 9160), (2620, 8244), (2748, 7860), (3144, 6870), (3435, 6288), (3664, 5895), (3930, 5496), (4122, 5240), (4580, 4716)]