20339640

素因数分解:

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

素因数の和:566

約数の個数: 128

約数和(自身を含む): 69768000

約数和(自身を除く): 49428360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 90, 108, 111, 120, 135, 148, 180, 185, 216, 222, 270, 296, 333, 360, 370, 444, 509, 540, 555, 666, 740, 888, 999, 1018, 1080, 1110, 1332, 1480, 1527, 1665, 1998, 2036, 2220, 2545, 2664, 3054, 3330, 3996, 4072, 4440, 4581, 4995, 5090, 6108, 6660, 7635, 7992, 9162, 9990, 10180, 12216, 13320, 13743, 15270, 18324, 18833, 19980, 20360, 22905, 27486, 30540, 36648, 37666, 39960, 45810, 54972, 56499, 61080, 68715, 75332, 91620, 94165, 109944, 112998, 137430, 150664, 169497, 183240, 188330, 225996, 274860, 282495, 338994, 376660, 451992, 508491, 549720, 564990, 677988, 753320, 847485, 1016982, 1129980, 1355976, 1694970, 2033964, 2259960, 2542455, 3389940, 4067928, 5084910, 6779880, 10169820, 20339640]

約数ペア:

[(1, 20339640), (2, 10169820), (3, 6779880), (4, 5084910), (5, 4067928), (6, 3389940), (8, 2542455), (9, 2259960), (10, 2033964), (12, 1694970), (15, 1355976), (18, 1129980), (20, 1016982), (24, 847485), (27, 753320), (30, 677988), (36, 564990), (37, 549720), (40, 508491), (45, 451992), (54, 376660), (60, 338994), (72, 282495), (74, 274860), (90, 225996), (108, 188330), (111, 183240), (120, 169497), (135, 150664), (148, 137430), (180, 112998), (185, 109944), (216, 94165), (222, 91620), (270, 75332), (296, 68715), (333, 61080), (360, 56499), (370, 54972), (444, 45810), (509, 39960), (540, 37666), (555, 36648), (666, 30540), (740, 27486), (888, 22905), (999, 20360), (1018, 19980), (1080, 18833), (1110, 18324), (1332, 15270), (1480, 13743), (1527, 13320), (1665, 12216), (1998, 10180), (2036, 9990), (2220, 9162), (2545, 7992), (2664, 7635), (3054, 6660), (3330, 6108), (3996, 5090), (4072, 4995), (4440, 4581)]