20285957440

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{1559}}^1$

素因数の和:1777

約数の個数: 224

約数和(自身を含む): 57096599040

約数和(自身を除く): 36810641600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 140, 148, 157, 160, 185, 224, 259, 280, 296, 314, 320, 370, 448, 518, 560, 592, 628, 740, 785, 1036, 1099, 1120, 1184, 1256, 1295, 1480, 1559, 1570, 2072, 2198, 2240, 2368, 2512, 2590, 2960, 3118, 3140, 4144, 4396, 5024, 5180, 5495, 5809, 5920, 6236, 6280, 7795, 8288, 8792, 10048, 10360, 10913, 10990, 11618, 11840, 12472, 12560, 15590, 16576, 17584, 20720, 21826, 21980, 23236, 24944, 25120, 29045, 31180, 35168, 40663, 41440, 43652, 43960, 46472, 49888, 50240, 54565, 57683, 58090, 62360, 70336, 81326, 82880, 87304, 87920, 92944, 99776, 109130, 115366, 116180, 124720, 162652, 174608, 175840, 185888, 203315, 218260, 230732, 232360, 244763, 249440, 288415, 325304, 349216, 351680, 371776, 403781, 406630, 436520, 461464, 464720, 489526, 498880, 576830, 650608, 698432, 807562, 813260, 873040, 922928, 929440, 979052, 1153660, 1223815, 1301216, 1615124, 1626520, 1713341, 1746080, 1845856, 1858880, 1958104, 2018905, 2307320, 2447630, 2602432, 3230248, 3253040, 3426682, 3492160, 3691712, 3916208, 4037810, 4614640, 4895260, 6460496, 6506080, 6853364, 7832416, 8075620, 8566705, 9056231, 9229280, 9790520, 12920992, 13012160, 13706728, 15664832, 16151240, 17133410, 18112462, 18458560, 19581040, 25841984, 27413456, 32302480, 34266820, 36224924, 39162080, 45281155, 54826912, 63393617, 64604960, 68533640, 72449848, 78324160, 90562310, 109653824, 126787234, 129209920, 137067280, 144899696, 181124620, 253574468, 274134560, 289799392, 316968085, 362249240, 507148936, 548269120, 579598784, 633936170, 724498480, 1014297872, 1267872340, 1448996960, 2028595744, 2535744680, 2897993920, 4057191488, 5071489360, 10142978720, 20285957440]

約数ペア:

[(1, 20285957440), (2, 10142978720), (4, 5071489360), (5, 4057191488), (7, 2897993920), (8, 2535744680), (10, 2028595744), (14, 1448996960), (16, 1267872340), (20, 1014297872), (28, 724498480), (32, 633936170), (35, 579598784), (37, 548269120), (40, 507148936), (56, 362249240), (64, 316968085), (70, 289799392), (74, 274134560), (80, 253574468), (112, 181124620), (140, 144899696), (148, 137067280), (157, 129209920), (160, 126787234), (185, 109653824), (224, 90562310), (259, 78324160), (280, 72449848), (296, 68533640), (314, 64604960), (320, 63393617), (370, 54826912), (448, 45281155), (518, 39162080), (560, 36224924), (592, 34266820), (628, 32302480), (740, 27413456), (785, 25841984), (1036, 19581040), (1099, 18458560), (1120, 18112462), (1184, 17133410), (1256, 16151240), (1295, 15664832), (1480, 13706728), (1559, 13012160), (1570, 12920992), (2072, 9790520), (2198, 9229280), (2240, 9056231), (2368, 8566705), (2512, 8075620), (2590, 7832416), (2960, 6853364), (3118, 6506080), (3140, 6460496), (4144, 4895260), (4396, 4614640), (5024, 4037810), (5180, 3916208), (5495, 3691712), (5809, 3492160), (5920, 3426682), (6236, 3253040), (6280, 3230248), (7795, 2602432), (8288, 2447630), (8792, 2307320), (10048, 2018905), (10360, 1958104), (10913, 1858880), (10990, 1845856), (11618, 1746080), (11840, 1713341), (12472, 1626520), (12560, 1615124), (15590, 1301216), (16576, 1223815), (17584, 1153660), (20720, 979052), (21826, 929440), (21980, 922928), (23236, 873040), (24944, 813260), (25120, 807562), (29045, 698432), (31180, 650608), (35168, 576830), (40663, 498880), (41440, 489526), (43652, 464720), (43960, 461464), (46472, 436520), (49888, 406630), (50240, 403781), (54565, 371776), (57683, 351680), (58090, 349216), (62360, 325304), (70336, 288415), (81326, 249440), (82880, 244763), (87304, 232360), (87920, 230732), (92944, 218260), (99776, 203315), (109130, 185888), (115366, 175840), (116180, 174608), (124720, 162652)]