20699910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:163

約数の個数: 192

約数和(自身を含む): 70087680

約数和(自身を除く): 49387770

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 29, 30, 33, 35, 42, 45, 55, 58, 63, 66, 70, 77, 87, 90, 99, 103, 105, 110, 126, 145, 154, 165, 174, 198, 203, 206, 210, 231, 261, 290, 309, 315, 319, 330, 385, 406, 435, 462, 495, 515, 522, 609, 618, 630, 638, 693, 721, 770, 870, 927, 957, 990, 1015, 1030, 1133, 1155, 1218, 1305, 1386, 1442, 1545, 1595, 1827, 1854, 1914, 2030, 2163, 2233, 2266, 2310, 2610, 2871, 2987, 3045, 3090, 3190, 3399, 3465, 3605, 3654, 4326, 4466, 4635, 4785, 5665, 5742, 5974, 6090, 6489, 6699, 6798, 6930, 7210, 7931, 8961, 9135, 9270, 9570, 10197, 10815, 11165, 11330, 12978, 13398, 14355, 14935, 15862, 16995, 17922, 18270, 20097, 20394, 20909, 21630, 22330, 23793, 26883, 28710, 29870, 32445, 32857, 33495, 33990, 39655, 40194, 41818, 44805, 47586, 50985, 53766, 62727, 64890, 65714, 66990, 71379, 79310, 89610, 98571, 100485, 101970, 104545, 118965, 125454, 134415, 142758, 164285, 188181, 197142, 200970, 209090, 229999, 237930, 268830, 295713, 313635, 328570, 356895, 376362, 459998, 492855, 591426, 627270, 689997, 713790, 940905, 985710, 1149995, 1379994, 1478565, 1881810, 2069991, 2299990, 2957130, 3449985, 4139982, 6899970, 10349955, 20699910]

約数ペア:

[(1, 20699910), (2, 10349955), (3, 6899970), (5, 4139982), (6, 3449985), (7, 2957130), (9, 2299990), (10, 2069991), (11, 1881810), (14, 1478565), (15, 1379994), (18, 1149995), (21, 985710), (22, 940905), (29, 713790), (30, 689997), (33, 627270), (35, 591426), (42, 492855), (45, 459998), (55, 376362), (58, 356895), (63, 328570), (66, 313635), (70, 295713), (77, 268830), (87, 237930), (90, 229999), (99, 209090), (103, 200970), (105, 197142), (110, 188181), (126, 164285), (145, 142758), (154, 134415), (165, 125454), (174, 118965), (198, 104545), (203, 101970), (206, 100485), (210, 98571), (231, 89610), (261, 79310), (290, 71379), (309, 66990), (315, 65714), (319, 64890), (330, 62727), (385, 53766), (406, 50985), (435, 47586), (462, 44805), (495, 41818), (515, 40194), (522, 39655), (609, 33990), (618, 33495), (630, 32857), (638, 32445), (693, 29870), (721, 28710), (770, 26883), (870, 23793), (927, 22330), (957, 21630), (990, 20909), (1015, 20394), (1030, 20097), (1133, 18270), (1155, 17922), (1218, 16995), (1305, 15862), (1386, 14935), (1442, 14355), (1545, 13398), (1595, 12978), (1827, 11330), (1854, 11165), (1914, 10815), (2030, 10197), (2163, 9570), (2233, 9270), (2266, 9135), (2310, 8961), (2610, 7931), (2871, 7210), (2987, 6930), (3045, 6798), (3090, 6699), (3190, 6489), (3399, 6090), (3465, 5974), (3605, 5742), (3654, 5665), (4326, 4785), (4466, 4635)]