20173970680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1\times {\mathrm{643}}^1$

素因数の和:1253

約数の個数: 128

約数和(自身を含む): 48241267200

約数和(自身を除く): 28067296520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 115, 134, 184, 230, 268, 335, 460, 509, 536, 643, 670, 920, 1018, 1286, 1340, 1541, 2036, 2545, 2572, 2680, 3082, 3215, 4072, 5090, 5144, 6164, 6430, 7705, 10180, 11707, 12328, 12860, 14789, 15410, 20360, 23414, 25720, 29578, 30820, 34103, 43081, 46828, 58535, 59156, 61640, 68206, 73945, 86162, 93656, 117070, 118312, 136412, 147890, 170515, 172324, 215405, 234140, 272824, 295780, 327287, 341030, 344648, 430810, 468280, 591560, 654574, 682060, 784369, 861620, 990863, 1309148, 1364120, 1568738, 1636435, 1723240, 1981726, 2618296, 3137476, 3272870, 3921845, 3963452, 4954315, 6274952, 6545740, 7527601, 7843690, 7926904, 9908630, 13091480, 15055202, 15687380, 19817260, 21928229, 30110404, 31374760, 37638005, 39634520, 43856458, 60220808, 75276010, 87712916, 109641145, 150552020, 175425832, 219282290, 301104040, 438564580, 504349267, 877129160, 1008698534, 2017397068, 2521746335, 4034794136, 5043492670, 10086985340, 20173970680]

約数ペア:

[(1, 20173970680), (2, 10086985340), (4, 5043492670), (5, 4034794136), (8, 2521746335), (10, 2017397068), (20, 1008698534), (23, 877129160), (40, 504349267), (46, 438564580), (67, 301104040), (92, 219282290), (115, 175425832), (134, 150552020), (184, 109641145), (230, 87712916), (268, 75276010), (335, 60220808), (460, 43856458), (509, 39634520), (536, 37638005), (643, 31374760), (670, 30110404), (920, 21928229), (1018, 19817260), (1286, 15687380), (1340, 15055202), (1541, 13091480), (2036, 9908630), (2545, 7926904), (2572, 7843690), (2680, 7527601), (3082, 6545740), (3215, 6274952), (4072, 4954315), (5090, 3963452), (5144, 3921845), (6164, 3272870), (6430, 3137476), (7705, 2618296), (10180, 1981726), (11707, 1723240), (12328, 1636435), (12860, 1568738), (14789, 1364120), (15410, 1309148), (20360, 990863), (23414, 861620), (25720, 784369), (29578, 682060), (30820, 654574), (34103, 591560), (43081, 468280), (46828, 430810), (58535, 344648), (59156, 341030), (61640, 327287), (68206, 295780), (73945, 272824), (86162, 234140), (93656, 215405), (117070, 172324), (118312, 170515), (136412, 147890)]