20187828

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 53824680

約数和(自身を除く): 33636852

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 61, 87, 116, 122, 174, 183, 244, 261, 317, 348, 366, 522, 549, 634, 732, 951, 1044, 1098, 1268, 1769, 1902, 2196, 2853, 3538, 3804, 5307, 5706, 7076, 9193, 10614, 11412, 15921, 18386, 19337, 21228, 27579, 31842, 36772, 38674, 55158, 58011, 63684, 77348, 82737, 110316, 116022, 165474, 174033, 232044, 330948, 348066, 560773, 696132, 1121546, 1682319, 2243092, 3364638, 5046957, 6729276, 10093914, 20187828]

約数ペア:

[(1, 20187828), (2, 10093914), (3, 6729276), (4, 5046957), (6, 3364638), (9, 2243092), (12, 1682319), (18, 1121546), (29, 696132), (36, 560773), (58, 348066), (61, 330948), (87, 232044), (116, 174033), (122, 165474), (174, 116022), (183, 110316), (244, 82737), (261, 77348), (317, 63684), (348, 58011), (366, 55158), (522, 38674), (549, 36772), (634, 31842), (732, 27579), (951, 21228), (1044, 19337), (1098, 18386), (1268, 15921), (1769, 11412), (1902, 10614), (2196, 9193), (2853, 7076), (3538, 5706), (3804, 5307)]