648739280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{929}}^1$

素因数の和:1021

約数の個数: 160

約数和(自身を含む): 1826668800

約数和(自身を除く): 1177929520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 43, 56, 58, 70, 80, 86, 112, 116, 140, 145, 172, 203, 215, 232, 280, 290, 301, 344, 406, 430, 464, 560, 580, 602, 688, 812, 860, 929, 1015, 1160, 1204, 1247, 1505, 1624, 1720, 1858, 2030, 2320, 2408, 2494, 3010, 3248, 3440, 3716, 4060, 4645, 4816, 4988, 6020, 6235, 6503, 7432, 8120, 8729, 9290, 9976, 12040, 12470, 13006, 14864, 16240, 17458, 18580, 19952, 24080, 24940, 26012, 26941, 32515, 34916, 37160, 39947, 43645, 49880, 52024, 53882, 65030, 69832, 74320, 79894, 87290, 99760, 104048, 107764, 130060, 134705, 139664, 159788, 174580, 188587, 199735, 215528, 260120, 269410, 279629, 319576, 349160, 377174, 399470, 431056, 520240, 538820, 559258, 639152, 698320, 754348, 798940, 942935, 1077640, 1118516, 1158463, 1398145, 1508696, 1597880, 1885870, 2155280, 2237032, 2316926, 2796290, 3017392, 3195760, 3771740, 4474064, 4633852, 5592580, 5792315, 7543480, 8109241, 9267704, 11185160, 11584630, 15086960, 16218482, 18535408, 22370320, 23169260, 32436964, 40546205, 46338520, 64873928, 81092410, 92677040, 129747856, 162184820, 324369640, 648739280]

約数ペア:

[(1, 648739280), (2, 324369640), (4, 162184820), (5, 129747856), (7, 92677040), (8, 81092410), (10, 64873928), (14, 46338520), (16, 40546205), (20, 32436964), (28, 23169260), (29, 22370320), (35, 18535408), (40, 16218482), (43, 15086960), (56, 11584630), (58, 11185160), (70, 9267704), (80, 8109241), (86, 7543480), (112, 5792315), (116, 5592580), (140, 4633852), (145, 4474064), (172, 3771740), (203, 3195760), (215, 3017392), (232, 2796290), (280, 2316926), (290, 2237032), (301, 2155280), (344, 1885870), (406, 1597880), (430, 1508696), (464, 1398145), (560, 1158463), (580, 1118516), (602, 1077640), (688, 942935), (812, 798940), (860, 754348), (929, 698320), (1015, 639152), (1160, 559258), (1204, 538820), (1247, 520240), (1505, 431056), (1624, 399470), (1720, 377174), (1858, 349160), (2030, 319576), (2320, 279629), (2408, 269410), (2494, 260120), (3010, 215528), (3248, 199735), (3440, 188587), (3716, 174580), (4060, 159788), (4645, 139664), (4816, 134705), (4988, 130060), (6020, 107764), (6235, 104048), (6503, 99760), (7432, 87290), (8120, 79894), (8729, 74320), (9290, 69832), (9976, 65030), (12040, 53882), (12470, 52024), (13006, 49880), (14864, 43645), (16240, 39947), (17458, 37160), (18580, 34916), (19952, 32515), (24080, 26941), (24940, 26012)]