20310401280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{406859}}^1$

素因数の和:406896

約数の個数: 144

約数和(自身を含む): 69856234560

約数和(自身を除く): 49545833280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1560, 1664, 1920, 2080, 2496, 3120, 3328, 3840, 4160, 4992, 6240, 8320, 9984, 12480, 16640, 24960, 49920, 406859, 813718, 1220577, 1627436, 2034295, 2441154, 3254872, 4068590, 4882308, 5289167, 6102885, 6509744, 8137180, 9764616, 10578334, 12205770, 13019488, 15867501, 16274360, 19529232, 21156668, 24411540, 26038976, 26445835, 31735002, 32548720, 39058464, 42313336, 48823080, 52077952, 52891670, 63470004, 65097440, 78116928, 79337505, 84626672, 97646160, 104155904, 105783340, 126940008, 130194880, 156233856, 158675010, 169253344, 195292320, 211566680, 253880016, 260389760, 312467712, 317350020, 338506688, 390584640, 423133360, 507760032, 520779520, 634700040, 677013376, 781169280, 846266720, 1015520064, 1269400080, 1354026752, 1562338560, 1692533440, 2031040128, 2538800160, 3385066880, 4062080256, 5077600320, 6770133760, 10155200640, 20310401280]

約数ペア:

[(1, 20310401280), (2, 10155200640), (3, 6770133760), (4, 5077600320), (5, 4062080256), (6, 3385066880), (8, 2538800160), (10, 2031040128), (12, 1692533440), (13, 1562338560), (15, 1354026752), (16, 1269400080), (20, 1015520064), (24, 846266720), (26, 781169280), (30, 677013376), (32, 634700040), (39, 520779520), (40, 507760032), (48, 423133360), (52, 390584640), (60, 338506688), (64, 317350020), (65, 312467712), (78, 260389760), (80, 253880016), (96, 211566680), (104, 195292320), (120, 169253344), (128, 158675010), (130, 156233856), (156, 130194880), (160, 126940008), (192, 105783340), (195, 104155904), (208, 97646160), (240, 84626672), (256, 79337505), (260, 78116928), (312, 65097440), (320, 63470004), (384, 52891670), (390, 52077952), (416, 48823080), (480, 42313336), (520, 39058464), (624, 32548720), (640, 31735002), (768, 26445835), (780, 26038976), (832, 24411540), (960, 21156668), (1040, 19529232), (1248, 16274360), (1280, 15867501), (1560, 13019488), (1664, 12205770), (1920, 10578334), (2080, 9764616), (2496, 8137180), (3120, 6509744), (3328, 6102885), (3840, 5289167), (4160, 4882308), (4992, 4068590), (6240, 3254872), (8320, 2441154), (9984, 2034295), (12480, 1627436), (16640, 1220577), (24960, 813718), (49920, 406859)]