20178163720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{8147}}^1$

素因数の和:8615

約数の個数: 128

約数和(自身を含む): 53467827840

約数和(自身を除く): 33289664120

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 433, 440, 520, 572, 715, 866, 1144, 1430, 1732, 2165, 2860, 3464, 4330, 4763, 5629, 5720, 8147, 8660, 9526, 11258, 16294, 17320, 19052, 22516, 23815, 28145, 32588, 38104, 40735, 45032, 47630, 56290, 61919, 65176, 81470, 89617, 95260, 105911, 112580, 123838, 162940, 179234, 190520, 211822, 225160, 247676, 309595, 325880, 358468, 423644, 448085, 495352, 529555, 619190, 716936, 847288, 896170, 1059110, 1165021, 1238380, 1792340, 2118220, 2330042, 2476760, 3527651, 3584680, 4236440, 4660084, 5825105, 7055302, 9320168, 11650210, 14110604, 17638255, 23300420, 28221208, 35276510, 38804161, 45859463, 46600840, 70553020, 77608322, 91718926, 141106040, 155216644, 183437852, 194020805, 229297315, 310433288, 366875704, 388041610, 458594630, 504454093, 776083220, 917189260, 1008908186, 1552166440, 1834378520, 2017816372, 2522270465, 4035632744, 5044540930, 10089081860, 20178163720]

約数ペア:

[(1, 20178163720), (2, 10089081860), (4, 5044540930), (5, 4035632744), (8, 2522270465), (10, 2017816372), (11, 1834378520), (13, 1552166440), (20, 1008908186), (22, 917189260), (26, 776083220), (40, 504454093), (44, 458594630), (52, 388041610), (55, 366875704), (65, 310433288), (88, 229297315), (104, 194020805), (110, 183437852), (130, 155216644), (143, 141106040), (220, 91718926), (260, 77608322), (286, 70553020), (433, 46600840), (440, 45859463), (520, 38804161), (572, 35276510), (715, 28221208), (866, 23300420), (1144, 17638255), (1430, 14110604), (1732, 11650210), (2165, 9320168), (2860, 7055302), (3464, 5825105), (4330, 4660084), (4763, 4236440), (5629, 3584680), (5720, 3527651), (8147, 2476760), (8660, 2330042), (9526, 2118220), (11258, 1792340), (16294, 1238380), (17320, 1165021), (19052, 1059110), (22516, 896170), (23815, 847288), (28145, 716936), (32588, 619190), (38104, 529555), (40735, 495352), (45032, 448085), (47630, 423644), (56290, 358468), (61919, 325880), (65176, 309595), (81470, 247676), (89617, 225160), (95260, 211822), (105911, 190520), (112580, 179234), (123838, 162940)]