205381760

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:518

約数の個数: 128

約数和(自身を含む): 533174400

約数和(自身を除く): 327792640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 64, 68, 80, 85, 86, 128, 136, 160, 170, 172, 215, 272, 320, 340, 344, 430, 439, 544, 640, 680, 688, 731, 860, 878, 1088, 1360, 1376, 1462, 1720, 1756, 2176, 2195, 2720, 2752, 2924, 3440, 3512, 3655, 4390, 5440, 5504, 5848, 6880, 7024, 7310, 7463, 8780, 10880, 11696, 13760, 14048, 14620, 14926, 17560, 18877, 23392, 27520, 28096, 29240, 29852, 35120, 37315, 37754, 46784, 56192, 58480, 59704, 70240, 74630, 75508, 93568, 94385, 116960, 119408, 140480, 149260, 151016, 188770, 233920, 238816, 280960, 298520, 302032, 320909, 377540, 467840, 477632, 597040, 604064, 641818, 755080, 955264, 1194080, 1208128, 1283636, 1510160, 1604545, 2388160, 2416256, 2567272, 3020320, 3209090, 4776320, 5134544, 6040640, 6418180, 10269088, 12081280, 12836360, 20538176, 25672720, 41076352, 51345440, 102690880, 205381760]

約数ペア:

[(1, 205381760), (2, 102690880), (4, 51345440), (5, 41076352), (8, 25672720), (10, 20538176), (16, 12836360), (17, 12081280), (20, 10269088), (32, 6418180), (34, 6040640), (40, 5134544), (43, 4776320), (64, 3209090), (68, 3020320), (80, 2567272), (85, 2416256), (86, 2388160), (128, 1604545), (136, 1510160), (160, 1283636), (170, 1208128), (172, 1194080), (215, 955264), (272, 755080), (320, 641818), (340, 604064), (344, 597040), (430, 477632), (439, 467840), (544, 377540), (640, 320909), (680, 302032), (688, 298520), (731, 280960), (860, 238816), (878, 233920), (1088, 188770), (1360, 151016), (1376, 149260), (1462, 140480), (1720, 119408), (1756, 116960), (2176, 94385), (2195, 93568), (2720, 75508), (2752, 74630), (2924, 70240), (3440, 59704), (3512, 58480), (3655, 56192), (4390, 46784), (5440, 37754), (5504, 37315), (5848, 35120), (6880, 29852), (7024, 29240), (7310, 28096), (7463, 27520), (8780, 23392), (10880, 18877), (11696, 17560), (13760, 14926), (14048, 14620)]