20377560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1427}}^1$

素因数の和:1465

約数の個数: 128

約数和(自身を含む): 74027520

約数和(自身を除く): 53649960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1427, 1428, 1785, 2040, 2380, 2854, 2856, 3570, 4281, 4760, 5708, 7135, 7140, 8562, 9989, 11416, 14270, 14280, 17124, 19978, 21405, 24259, 28540, 29967, 34248, 39956, 42810, 48518, 49945, 57080, 59934, 72777, 79912, 85620, 97036, 99890, 119868, 121295, 145554, 149835, 169813, 171240, 194072, 199780, 239736, 242590, 291108, 299670, 339626, 363885, 399560, 485180, 509439, 582216, 599340, 679252, 727770, 849065, 970360, 1018878, 1198680, 1358504, 1455540, 1698130, 2037756, 2547195, 2911080, 3396260, 4075512, 5094390, 6792520, 10188780, 20377560]

約数ペア:

[(1, 20377560), (2, 10188780), (3, 6792520), (4, 5094390), (5, 4075512), (6, 3396260), (7, 2911080), (8, 2547195), (10, 2037756), (12, 1698130), (14, 1455540), (15, 1358504), (17, 1198680), (20, 1018878), (21, 970360), (24, 849065), (28, 727770), (30, 679252), (34, 599340), (35, 582216), (40, 509439), (42, 485180), (51, 399560), (56, 363885), (60, 339626), (68, 299670), (70, 291108), (84, 242590), (85, 239736), (102, 199780), (105, 194072), (119, 171240), (120, 169813), (136, 149835), (140, 145554), (168, 121295), (170, 119868), (204, 99890), (210, 97036), (238, 85620), (255, 79912), (280, 72777), (340, 59934), (357, 57080), (408, 49945), (420, 48518), (476, 42810), (510, 39956), (595, 34248), (680, 29967), (714, 28540), (840, 24259), (952, 21405), (1020, 19978), (1190, 17124), (1427, 14280), (1428, 14270), (1785, 11416), (2040, 9989), (2380, 8562), (2854, 7140), (2856, 7135), (3570, 5708), (4281, 4760)]