20564280

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{577}}^1$

素因数の和:611

約数の個数: 160

約数和(自身を含む): 75533040

約数和(自身を除く): 54968760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 540, 577, 594, 648, 660, 792, 810, 891, 990, 1080, 1154, 1188, 1320, 1485, 1620, 1731, 1782, 1980, 2308, 2376, 2885, 2970, 3240, 3462, 3564, 3960, 4455, 4616, 5193, 5770, 5940, 6347, 6924, 7128, 8655, 8910, 10386, 11540, 11880, 12694, 13848, 15579, 17310, 17820, 19041, 20772, 23080, 25388, 25965, 31158, 31735, 34620, 35640, 38082, 41544, 46737, 50776, 51930, 57123, 62316, 63470, 69240, 76164, 77895, 93474, 95205, 103860, 114246, 124632, 126940, 152328, 155790, 171369, 186948, 190410, 207720, 228492, 233685, 253880, 285615, 311580, 342738, 373896, 380820, 456984, 467370, 514107, 571230, 623160, 685476, 761640, 856845, 934740, 1028214, 1142460, 1370952, 1713690, 1869480, 2056428, 2284920, 2570535, 3427380, 4112856, 5141070, 6854760, 10282140, 20564280]

約数ペア:

[(1, 20564280), (2, 10282140), (3, 6854760), (4, 5141070), (5, 4112856), (6, 3427380), (8, 2570535), (9, 2284920), (10, 2056428), (11, 1869480), (12, 1713690), (15, 1370952), (18, 1142460), (20, 1028214), (22, 934740), (24, 856845), (27, 761640), (30, 685476), (33, 623160), (36, 571230), (40, 514107), (44, 467370), (45, 456984), (54, 380820), (55, 373896), (60, 342738), (66, 311580), (72, 285615), (81, 253880), (88, 233685), (90, 228492), (99, 207720), (108, 190410), (110, 186948), (120, 171369), (132, 155790), (135, 152328), (162, 126940), (165, 124632), (180, 114246), (198, 103860), (216, 95205), (220, 93474), (264, 77895), (270, 76164), (297, 69240), (324, 63470), (330, 62316), (360, 57123), (396, 51930), (405, 50776), (440, 46737), (495, 41544), (540, 38082), (577, 35640), (594, 34620), (648, 31735), (660, 31158), (792, 25965), (810, 25388), (891, 23080), (990, 20772), (1080, 19041), (1154, 17820), (1188, 17310), (1320, 15579), (1485, 13848), (1620, 12694), (1731, 11880), (1782, 11540), (1980, 10386), (2308, 8910), (2376, 8655), (2885, 7128), (2970, 6924), (3240, 6347), (3462, 5940), (3564, 5770), (3960, 5193), (4455, 4616)]