20529080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:169

約数の個数: 128

約数和(自身を含む): 56306880

約数和(自身を除く): 35777800

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 37, 40, 44, 52, 55, 65, 74, 88, 97, 104, 110, 130, 143, 148, 185, 194, 220, 260, 286, 296, 370, 388, 407, 440, 481, 485, 520, 572, 715, 740, 776, 814, 962, 970, 1067, 1144, 1261, 1430, 1480, 1628, 1924, 1940, 2035, 2134, 2405, 2522, 2860, 3256, 3589, 3848, 3880, 4070, 4268, 4810, 5044, 5291, 5335, 5720, 6305, 7178, 8140, 8536, 9620, 10088, 10582, 10670, 12610, 13871, 14356, 16280, 17945, 19240, 21164, 21340, 25220, 26455, 27742, 28712, 35890, 39479, 42328, 42680, 46657, 50440, 52910, 55484, 69355, 71780, 78958, 93314, 105820, 110968, 138710, 143560, 157916, 186628, 197395, 211640, 233285, 277420, 315832, 373256, 394790, 466570, 513227, 554840, 789580, 933140, 1026454, 1579160, 1866280, 2052908, 2566135, 4105816, 5132270, 10264540, 20529080]

約数ペア:

[(1, 20529080), (2, 10264540), (4, 5132270), (5, 4105816), (8, 2566135), (10, 2052908), (11, 1866280), (13, 1579160), (20, 1026454), (22, 933140), (26, 789580), (37, 554840), (40, 513227), (44, 466570), (52, 394790), (55, 373256), (65, 315832), (74, 277420), (88, 233285), (97, 211640), (104, 197395), (110, 186628), (130, 157916), (143, 143560), (148, 138710), (185, 110968), (194, 105820), (220, 93314), (260, 78958), (286, 71780), (296, 69355), (370, 55484), (388, 52910), (407, 50440), (440, 46657), (481, 42680), (485, 42328), (520, 39479), (572, 35890), (715, 28712), (740, 27742), (776, 26455), (814, 25220), (962, 21340), (970, 21164), (1067, 19240), (1144, 17945), (1261, 16280), (1430, 14356), (1480, 13871), (1628, 12610), (1924, 10670), (1940, 10582), (2035, 10088), (2134, 9620), (2405, 8536), (2522, 8140), (2860, 7178), (3256, 6305), (3589, 5720), (3848, 5335), (3880, 5291), (4070, 5044), (4268, 4810)]