20414680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 55883520

約数和(自身を除く): 35468840

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 43, 44, 52, 55, 65, 83, 86, 88, 104, 110, 130, 143, 166, 172, 215, 220, 260, 286, 332, 344, 415, 430, 440, 473, 520, 559, 572, 664, 715, 830, 860, 913, 946, 1079, 1118, 1144, 1430, 1660, 1720, 1826, 1892, 2158, 2236, 2365, 2795, 2860, 3320, 3569, 3652, 3784, 4316, 4472, 4565, 4730, 5395, 5590, 5720, 6149, 7138, 7304, 8632, 9130, 9460, 10790, 11180, 11869, 12298, 14276, 17845, 18260, 18920, 21580, 22360, 23738, 24596, 28552, 30745, 35690, 36520, 39259, 43160, 46397, 47476, 49192, 59345, 61490, 71380, 78518, 92794, 94952, 118690, 122980, 142760, 157036, 185588, 196295, 231985, 237380, 245960, 314072, 371176, 392590, 463970, 474760, 510367, 785180, 927940, 1020734, 1570360, 1855880, 2041468, 2551835, 4082936, 5103670, 10207340, 20414680]

約数ペア:

[(1, 20414680), (2, 10207340), (4, 5103670), (5, 4082936), (8, 2551835), (10, 2041468), (11, 1855880), (13, 1570360), (20, 1020734), (22, 927940), (26, 785180), (40, 510367), (43, 474760), (44, 463970), (52, 392590), (55, 371176), (65, 314072), (83, 245960), (86, 237380), (88, 231985), (104, 196295), (110, 185588), (130, 157036), (143, 142760), (166, 122980), (172, 118690), (215, 94952), (220, 92794), (260, 78518), (286, 71380), (332, 61490), (344, 59345), (415, 49192), (430, 47476), (440, 46397), (473, 43160), (520, 39259), (559, 36520), (572, 35690), (664, 30745), (715, 28552), (830, 24596), (860, 23738), (913, 22360), (946, 21580), (1079, 18920), (1118, 18260), (1144, 17845), (1430, 14276), (1660, 12298), (1720, 11869), (1826, 11180), (1892, 10790), (2158, 9460), (2236, 9130), (2365, 8632), (2795, 7304), (2860, 7138), (3320, 6149), (3569, 5720), (3652, 5590), (3784, 5395), (4316, 4730), (4472, 4565)]