128817720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:582

約数の個数: 192

約数和(自身を含む): 453492000

約数和(自身を除く): 324674280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 37, 38, 40, 45, 57, 60, 72, 74, 76, 90, 95, 111, 114, 120, 148, 152, 171, 180, 185, 190, 222, 228, 285, 296, 333, 342, 360, 370, 380, 444, 456, 509, 555, 570, 666, 684, 703, 740, 760, 855, 888, 1018, 1110, 1140, 1332, 1368, 1406, 1480, 1527, 1665, 1710, 2036, 2109, 2220, 2280, 2545, 2664, 2812, 3054, 3330, 3420, 3515, 4072, 4218, 4440, 4581, 5090, 5624, 6108, 6327, 6660, 6840, 7030, 7635, 8436, 9162, 9671, 10180, 10545, 12216, 12654, 13320, 14060, 15270, 16872, 18324, 18833, 19342, 20360, 21090, 22905, 25308, 28120, 29013, 30540, 31635, 36648, 37666, 38684, 42180, 45810, 48355, 50616, 56499, 58026, 61080, 63270, 75332, 77368, 84360, 87039, 91620, 94165, 96710, 112998, 116052, 126540, 145065, 150664, 169497, 174078, 183240, 188330, 193420, 225996, 232104, 253080, 282495, 290130, 338994, 348156, 357827, 376660, 386840, 435195, 451992, 564990, 580260, 677988, 696312, 715654, 753320, 847485, 870390, 1073481, 1129980, 1160520, 1355976, 1431308, 1694970, 1740780, 1789135, 2146962, 2259960, 2862616, 3220443, 3389940, 3481560, 3578270, 4293924, 5367405, 6440886, 6779880, 7156540, 8587848, 10734810, 12881772, 14313080, 16102215, 21469620, 25763544, 32204430, 42939240, 64408860, 128817720]

約数ペア:

[(1, 128817720), (2, 64408860), (3, 42939240), (4, 32204430), (5, 25763544), (6, 21469620), (8, 16102215), (9, 14313080), (10, 12881772), (12, 10734810), (15, 8587848), (18, 7156540), (19, 6779880), (20, 6440886), (24, 5367405), (30, 4293924), (36, 3578270), (37, 3481560), (38, 3389940), (40, 3220443), (45, 2862616), (57, 2259960), (60, 2146962), (72, 1789135), (74, 1740780), (76, 1694970), (90, 1431308), (95, 1355976), (111, 1160520), (114, 1129980), (120, 1073481), (148, 870390), (152, 847485), (171, 753320), (180, 715654), (185, 696312), (190, 677988), (222, 580260), (228, 564990), (285, 451992), (296, 435195), (333, 386840), (342, 376660), (360, 357827), (370, 348156), (380, 338994), (444, 290130), (456, 282495), (509, 253080), (555, 232104), (570, 225996), (666, 193420), (684, 188330), (703, 183240), (740, 174078), (760, 169497), (855, 150664), (888, 145065), (1018, 126540), (1110, 116052), (1140, 112998), (1332, 96710), (1368, 94165), (1406, 91620), (1480, 87039), (1527, 84360), (1665, 77368), (1710, 75332), (2036, 63270), (2109, 61080), (2220, 58026), (2280, 56499), (2545, 50616), (2664, 48355), (2812, 45810), (3054, 42180), (3330, 38684), (3420, 37666), (3515, 36648), (4072, 31635), (4218, 30540), (4440, 29013), (4581, 28120), (5090, 25308), (5624, 22905), (6108, 21090), (6327, 20360), (6660, 19342), (6840, 18833), (7030, 18324), (7635, 16872), (8436, 15270), (9162, 14060), (9671, 13320), (10180, 12654), (10545, 12216)]