21710052840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1360279}}^1$

素因数の和:1360319

約数の個数: 128

約数和(自身を含む): 78352128000

約数和(自身を除く): 56642075160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5320, 7980, 15960, 1360279, 2720558, 4080837, 5441116, 6801395, 8161674, 9521953, 10882232, 13602790, 16323348, 19043906, 20404185, 25845301, 27205580, 28565859, 32646696, 38087812, 40808370, 47609765, 51690602, 54411160, 57131718, 76175624, 77535903, 81616740, 95219530, 103381204, 114263436, 129226505, 142829295, 155071806, 163233480, 180917107, 190439060, 206762408, 228526872, 258453010, 285658590, 310143612, 361834214, 380878120, 387679515, 516906020, 542751321, 571317180, 620287224, 723668428, 775359030, 904585535, 1033812040, 1085502642, 1142634360, 1447336856, 1550718060, 1809171070, 2171005284, 2713756605, 3101436120, 3618342140, 4342010568, 5427513210, 7236684280, 10855026420, 21710052840]

約数ペア:

[(1, 21710052840), (2, 10855026420), (3, 7236684280), (4, 5427513210), (5, 4342010568), (6, 3618342140), (7, 3101436120), (8, 2713756605), (10, 2171005284), (12, 1809171070), (14, 1550718060), (15, 1447336856), (19, 1142634360), (20, 1085502642), (21, 1033812040), (24, 904585535), (28, 775359030), (30, 723668428), (35, 620287224), (38, 571317180), (40, 542751321), (42, 516906020), (56, 387679515), (57, 380878120), (60, 361834214), (70, 310143612), (76, 285658590), (84, 258453010), (95, 228526872), (105, 206762408), (114, 190439060), (120, 180917107), (133, 163233480), (140, 155071806), (152, 142829295), (168, 129226505), (190, 114263436), (210, 103381204), (228, 95219530), (266, 81616740), (280, 77535903), (285, 76175624), (380, 57131718), (399, 54411160), (420, 51690602), (456, 47609765), (532, 40808370), (570, 38087812), (665, 32646696), (760, 28565859), (798, 27205580), (840, 25845301), (1064, 20404185), (1140, 19043906), (1330, 16323348), (1596, 13602790), (1995, 10882232), (2280, 9521953), (2660, 8161674), (3192, 6801395), (3990, 5441116), (5320, 4080837), (7980, 2720558), (15960, 1360279)]