289103660

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{2731}}^1$

素因数の和:2886

約数の個数: 48

約数和(自身を含む): 624207360

約数和(自身を除く): 335103700

約数列:

[1, 2, 4, 5, 10, 20, 67, 79, 134, 158, 268, 316, 335, 395, 670, 790, 1340, 1580, 2731, 5293, 5462, 10586, 10924, 13655, 21172, 26465, 27310, 52930, 54620, 105860, 182977, 215749, 365954, 431498, 731908, 862996, 914885, 1078745, 1829770, 2157490, 3659540, 4314980, 14455183, 28910366, 57820732, 72275915, 144551830, 289103660]

約数ペア:

[(1, 289103660), (2, 144551830), (4, 72275915), (5, 57820732), (10, 28910366), (20, 14455183), (67, 4314980), (79, 3659540), (134, 2157490), (158, 1829770), (268, 1078745), (316, 914885), (335, 862996), (395, 731908), (670, 431498), (790, 365954), (1340, 215749), (1580, 182977), (2731, 105860), (5293, 54620), (5462, 52930), (10586, 27310), (10924, 26465), (13655, 21172)]