420098560

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 240

約数和(自身を含む): 1246922424

約数和(自身を除く): 826823864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 64, 68, 70, 80, 85, 98, 112, 119, 128, 136, 140, 160, 170, 196, 197, 224, 238, 245, 256, 272, 280, 320, 340, 392, 394, 448, 476, 490, 512, 544, 560, 595, 640, 680, 784, 788, 833, 896, 952, 980, 985, 1088, 1120, 1190, 1280, 1360, 1379, 1568, 1576, 1666, 1792, 1904, 1960, 1970, 2176, 2240, 2380, 2560, 2720, 2758, 3136, 3152, 3332, 3349, 3584, 3808, 3920, 3940, 4165, 4352, 4480, 4760, 5440, 5516, 6272, 6304, 6664, 6698, 6895, 7616, 7840, 7880, 8330, 8704, 8960, 9520, 9653, 10880, 11032, 12544, 12608, 13328, 13396, 13790, 15232, 15680, 15760, 16660, 16745, 17920, 19040, 19306, 21760, 22064, 23443, 25088, 25216, 26656, 26792, 27580, 30464, 31360, 31520, 33320, 33490, 38080, 38612, 43520, 44128, 46886, 48265, 50432, 53312, 53584, 55160, 60928, 62720, 63040, 66640, 66980, 76160, 77224, 88256, 93772, 96530, 100864, 106624, 107168, 110320, 117215, 125440, 126080, 133280, 133960, 152320, 154448, 164101, 176512, 187544, 193060, 213248, 214336, 220640, 234430, 252160, 266560, 267920, 304640, 308896, 328202, 353024, 375088, 386120, 426496, 428672, 441280, 468860, 504320, 533120, 535840, 617792, 656404, 706048, 750176, 772240, 820505, 857344, 882560, 937720, 1066240, 1071680, 1235584, 1312808, 1500352, 1544480, 1641010, 1714688, 1765120, 1875440, 2132480, 2143360, 2471168, 2625616, 3000704, 3088960, 3282020, 3530240, 3750880, 4286720, 4942336, 5251232, 6001408, 6177920, 6564040, 7501760, 8573440, 10502464, 12002816, 12355840, 13128080, 15003520, 21004928, 24711680, 26256160, 30007040, 42009856, 52512320, 60014080, 84019712, 105024640, 210049280, 420098560]

約数ペア:

[(1, 420098560), (2, 210049280), (4, 105024640), (5, 84019712), (7, 60014080), (8, 52512320), (10, 42009856), (14, 30007040), (16, 26256160), (17, 24711680), (20, 21004928), (28, 15003520), (32, 13128080), (34, 12355840), (35, 12002816), (40, 10502464), (49, 8573440), (56, 7501760), (64, 6564040), (68, 6177920), (70, 6001408), (80, 5251232), (85, 4942336), (98, 4286720), (112, 3750880), (119, 3530240), (128, 3282020), (136, 3088960), (140, 3000704), (160, 2625616), (170, 2471168), (196, 2143360), (197, 2132480), (224, 1875440), (238, 1765120), (245, 1714688), (256, 1641010), (272, 1544480), (280, 1500352), (320, 1312808), (340, 1235584), (392, 1071680), (394, 1066240), (448, 937720), (476, 882560), (490, 857344), (512, 820505), (544, 772240), (560, 750176), (595, 706048), (640, 656404), (680, 617792), (784, 535840), (788, 533120), (833, 504320), (896, 468860), (952, 441280), (980, 428672), (985, 426496), (1088, 386120), (1120, 375088), (1190, 353024), (1280, 328202), (1360, 308896), (1379, 304640), (1568, 267920), (1576, 266560), (1666, 252160), (1792, 234430), (1904, 220640), (1960, 214336), (1970, 213248), (2176, 193060), (2240, 187544), (2380, 176512), (2560, 164101), (2720, 154448), (2758, 152320), (3136, 133960), (3152, 133280), (3332, 126080), (3349, 125440), (3584, 117215), (3808, 110320), (3920, 107168), (3940, 106624), (4165, 100864), (4352, 96530), (4480, 93772), (4760, 88256), (5440, 77224), (5516, 76160), (6272, 66980), (6304, 66640), (6664, 63040), (6698, 62720), (6895, 60928), (7616, 55160), (7840, 53584), (7880, 53312), (8330, 50432), (8704, 48265), (8960, 46886), (9520, 44128), (9653, 43520), (10880, 38612), (11032, 38080), (12544, 33490), (12608, 33320), (13328, 31520), (13396, 31360), (13790, 30464), (15232, 27580), (15680, 26792), (15760, 26656), (16660, 25216), (16745, 25088), (17920, 23443), (19040, 22064), (19306, 21760)]