20529557440

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{1309283}}^1$

素因数の和:1309314

約数の個数: 84

約数和(自身を含む): 56867441256

約数和(自身を除く): 36337883816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 15680, 1309283, 2618566, 5237132, 6546415, 9164981, 10474264, 13092830, 18329962, 20948528, 26185660, 36659924, 41897056, 45824905, 52371320, 64154867, 73319848, 83794112, 91649810, 104742640, 128309734, 146639696, 183299620, 209485280, 256619468, 293279392, 320774335, 366599240, 418970560, 513238936, 586558784, 641548670, 733198480, 1026477872, 1283097340, 1466396960, 2052955744, 2566194680, 2932793920, 4105911488, 5132389360, 10264778720, 20529557440]

約数ペア:

[(1, 20529557440), (2, 10264778720), (4, 5132389360), (5, 4105911488), (7, 2932793920), (8, 2566194680), (10, 2052955744), (14, 1466396960), (16, 1283097340), (20, 1026477872), (28, 733198480), (32, 641548670), (35, 586558784), (40, 513238936), (49, 418970560), (56, 366599240), (64, 320774335), (70, 293279392), (80, 256619468), (98, 209485280), (112, 183299620), (140, 146639696), (160, 128309734), (196, 104742640), (224, 91649810), (245, 83794112), (280, 73319848), (320, 64154867), (392, 52371320), (448, 45824905), (490, 41897056), (560, 36659924), (784, 26185660), (980, 20948528), (1120, 18329962), (1568, 13092830), (1960, 10474264), (2240, 9164981), (3136, 6546415), (3920, 5237132), (7840, 2618566), (15680, 1309283)]