20294120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{599}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 57456000

約数和(自身を除く): 37161880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 121, 140, 154, 220, 242, 280, 308, 385, 440, 484, 599, 605, 616, 770, 847, 968, 1198, 1210, 1540, 1694, 2396, 2420, 2995, 3080, 3388, 4193, 4235, 4792, 4840, 5990, 6589, 6776, 8386, 8470, 11980, 13178, 16772, 16940, 20965, 23960, 26356, 32945, 33544, 33880, 41930, 46123, 52712, 65890, 72479, 83860, 92246, 131780, 144958, 167720, 184492, 230615, 263560, 289916, 362395, 368984, 461230, 507353, 579832, 724790, 922460, 1014706, 1449580, 1844920, 2029412, 2536765, 2899160, 4058824, 5073530, 10147060, 20294120]

約数ペア:

[(1, 20294120), (2, 10147060), (4, 5073530), (5, 4058824), (7, 2899160), (8, 2536765), (10, 2029412), (11, 1844920), (14, 1449580), (20, 1014706), (22, 922460), (28, 724790), (35, 579832), (40, 507353), (44, 461230), (55, 368984), (56, 362395), (70, 289916), (77, 263560), (88, 230615), (110, 184492), (121, 167720), (140, 144958), (154, 131780), (220, 92246), (242, 83860), (280, 72479), (308, 65890), (385, 52712), (440, 46123), (484, 41930), (599, 33880), (605, 33544), (616, 32945), (770, 26356), (847, 23960), (968, 20965), (1198, 16940), (1210, 16772), (1540, 13178), (1694, 11980), (2396, 8470), (2420, 8386), (2995, 6776), (3080, 6589), (3388, 5990), (4193, 4840), (4235, 4792)]