20117851520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{10559}}^1$

素因数の和:10820

約数の個数: 128

約数和(自身を含む): 52024896000

約数和(自身を除く): 31907044480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 229, 260, 320, 416, 458, 520, 640, 832, 916, 1040, 1145, 1664, 1832, 2080, 2290, 2977, 3664, 4160, 4580, 5954, 7328, 8320, 9160, 10559, 11908, 14656, 14885, 18320, 21118, 23816, 29312, 29770, 36640, 42236, 47632, 52795, 59540, 73280, 84472, 95264, 105590, 119080, 137267, 146560, 168944, 190528, 211180, 238160, 274534, 337888, 381056, 422360, 476320, 549068, 675776, 686335, 844720, 952640, 1098136, 1351552, 1372670, 1689440, 1905280, 2196272, 2418011, 2745340, 3378880, 4392544, 4836022, 5490680, 6757760, 8785088, 9672044, 10981360, 12090055, 17570176, 19344088, 21962720, 24180110, 31434143, 38688176, 43925440, 48360220, 62868286, 77376352, 87850880, 96720440, 125736572, 154752704, 157170715, 193440880, 251473144, 309505408, 314341430, 386881760, 502946288, 628682860, 773763520, 1005892576, 1257365720, 1547527040, 2011785152, 2514731440, 4023570304, 5029462880, 10058925760, 20117851520]

約数ペア:

[(1, 20117851520), (2, 10058925760), (4, 5029462880), (5, 4023570304), (8, 2514731440), (10, 2011785152), (13, 1547527040), (16, 1257365720), (20, 1005892576), (26, 773763520), (32, 628682860), (40, 502946288), (52, 386881760), (64, 314341430), (65, 309505408), (80, 251473144), (104, 193440880), (128, 157170715), (130, 154752704), (160, 125736572), (208, 96720440), (229, 87850880), (260, 77376352), (320, 62868286), (416, 48360220), (458, 43925440), (520, 38688176), (640, 31434143), (832, 24180110), (916, 21962720), (1040, 19344088), (1145, 17570176), (1664, 12090055), (1832, 10981360), (2080, 9672044), (2290, 8785088), (2977, 6757760), (3664, 5490680), (4160, 4836022), (4580, 4392544), (5954, 3378880), (7328, 2745340), (8320, 2418011), (9160, 2196272), (10559, 1905280), (11908, 1689440), (14656, 1372670), (14885, 1351552), (18320, 1098136), (21118, 952640), (23816, 844720), (29312, 686335), (29770, 675776), (36640, 549068), (42236, 476320), (47632, 422360), (52795, 381056), (59540, 337888), (73280, 274534), (84472, 238160), (95264, 211180), (105590, 190528), (119080, 168944), (137267, 146560)]