20440616

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 25282264

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 71, 97, 106, 142, 194, 212, 284, 371, 388, 424, 497, 568, 679, 742, 776, 994, 1358, 1484, 1988, 2716, 2968, 3763, 3976, 5141, 5432, 6887, 7526, 10282, 13774, 15052, 20564, 26341, 27548, 30104, 35987, 41128, 48209, 52682, 55096, 71974, 96418, 105364, 143948, 192836, 210728, 287896, 365011, 385672, 730022, 1460044, 2555077, 2920088, 5110154, 10220308, 20440616]

約数ペア:

[(1, 20440616), (2, 10220308), (4, 5110154), (7, 2920088), (8, 2555077), (14, 1460044), (28, 730022), (53, 385672), (56, 365011), (71, 287896), (97, 210728), (106, 192836), (142, 143948), (194, 105364), (212, 96418), (284, 71974), (371, 55096), (388, 52682), (424, 48209), (497, 41128), (568, 35987), (679, 30104), (742, 27548), (776, 26341), (994, 20564), (1358, 15052), (1484, 13774), (1988, 10282), (2716, 7526), (2968, 6887), (3763, 5432), (3976, 5141)]