64408860

素因数分解:

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

素因数の和:580

約数の個数: 144

約数和(自身を含む): 211629600

約数和(自身を除く): 147220740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 37, 38, 45, 57, 60, 74, 76, 90, 95, 111, 114, 148, 171, 180, 185, 190, 222, 228, 285, 333, 342, 370, 380, 444, 509, 555, 570, 666, 684, 703, 740, 855, 1018, 1110, 1140, 1332, 1406, 1527, 1665, 1710, 2036, 2109, 2220, 2545, 2812, 3054, 3330, 3420, 3515, 4218, 4581, 5090, 6108, 6327, 6660, 7030, 7635, 8436, 9162, 9671, 10180, 10545, 12654, 14060, 15270, 18324, 18833, 19342, 21090, 22905, 25308, 29013, 30540, 31635, 37666, 38684, 42180, 45810, 48355, 56499, 58026, 63270, 75332, 87039, 91620, 94165, 96710, 112998, 116052, 126540, 145065, 169497, 174078, 188330, 193420, 225996, 282495, 290130, 338994, 348156, 357827, 376660, 435195, 564990, 580260, 677988, 715654, 847485, 870390, 1073481, 1129980, 1431308, 1694970, 1740780, 1789135, 2146962, 3220443, 3389940, 3578270, 4293924, 5367405, 6440886, 7156540, 10734810, 12881772, 16102215, 21469620, 32204430, 64408860]

約数ペア:

[(1, 64408860), (2, 32204430), (3, 21469620), (4, 16102215), (5, 12881772), (6, 10734810), (9, 7156540), (10, 6440886), (12, 5367405), (15, 4293924), (18, 3578270), (19, 3389940), (20, 3220443), (30, 2146962), (36, 1789135), (37, 1740780), (38, 1694970), (45, 1431308), (57, 1129980), (60, 1073481), (74, 870390), (76, 847485), (90, 715654), (95, 677988), (111, 580260), (114, 564990), (148, 435195), (171, 376660), (180, 357827), (185, 348156), (190, 338994), (222, 290130), (228, 282495), (285, 225996), (333, 193420), (342, 188330), (370, 174078), (380, 169497), (444, 145065), (509, 126540), (555, 116052), (570, 112998), (666, 96710), (684, 94165), (703, 91620), (740, 87039), (855, 75332), (1018, 63270), (1110, 58026), (1140, 56499), (1332, 48355), (1406, 45810), (1527, 42180), (1665, 38684), (1710, 37666), (2036, 31635), (2109, 30540), (2220, 29013), (2545, 25308), (2812, 22905), (3054, 21090), (3330, 19342), (3420, 18833), (3515, 18324), (4218, 15270), (4581, 14060), (5090, 12654), (6108, 10545), (6327, 10180), (6660, 9671), (7030, 9162), (7635, 8436)]