18829693805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 25279382016

約数和(自身を除く): 6449688211

約数列:

[1, 5, 13, 61, 65, 71, 211, 305, 317, 355, 793, 923, 1055, 1585, 2743, 3965, 4121, 4331, 4615, 12871, 13715, 14981, 19337, 20605, 21655, 22507, 56303, 64355, 66887, 74905, 96685, 112535, 167323, 194753, 251381, 281515, 292591, 334435, 836615, 869531, 913841, 973765, 1256905, 1372927, 1462955, 4080107, 4347655, 4569205, 4748977, 6864635, 11879933, 17848051, 20400535, 23744885, 53041391, 59399665, 61736701, 89240255, 265206955, 289687597, 308683505, 1448437985, 3765938761, 18829693805]

約数ペア:

[(1, 18829693805), (5, 3765938761), (13, 1448437985), (61, 308683505), (65, 289687597), (71, 265206955), (211, 89240255), (305, 61736701), (317, 59399665), (355, 53041391), (793, 23744885), (923, 20400535), (1055, 17848051), (1585, 11879933), (2743, 6864635), (3965, 4748977), (4121, 4569205), (4331, 4347655), (4615, 4080107), (12871, 1462955), (13715, 1372927), (14981, 1256905), (19337, 973765), (20605, 913841), (21655, 869531), (22507, 836615), (56303, 334435), (64355, 292591), (66887, 281515), (74905, 251381), (96685, 194753), (112535, 167323)]