20804948398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{439}}^1\times {\mathrm{599}}^1$

素因数の和:1249

約数の個数: 64

約数和(自身を含む): 35925120000

約数和(自身を除く): 15120171602

約数列:

[1, 2, 13, 17, 26, 34, 179, 221, 358, 439, 442, 599, 878, 1198, 2327, 3043, 4654, 5707, 6086, 7463, 7787, 10183, 11414, 14926, 15574, 20366, 39559, 78581, 79118, 97019, 107221, 132379, 157162, 194038, 214442, 262961, 264758, 525922, 1021553, 1335877, 1393873, 1822757, 2043106, 2671754, 2787746, 3418493, 3645514, 4470337, 6836986, 8940674, 17366401, 23695841, 34732802, 47070019, 47391682, 58114381, 94140038, 116228762, 611910247, 800190323, 1223820494, 1600380646, 10402474199, 20804948398]

約数ペア:

[(1, 20804948398), (2, 10402474199), (13, 1600380646), (17, 1223820494), (26, 800190323), (34, 611910247), (179, 116228762), (221, 94140038), (358, 58114381), (439, 47391682), (442, 47070019), (599, 34732802), (878, 23695841), (1198, 17366401), (2327, 8940674), (3043, 6836986), (4654, 4470337), (5707, 3645514), (6086, 3418493), (7463, 2787746), (7787, 2671754), (10183, 2043106), (11414, 1822757), (14926, 1393873), (15574, 1335877), (20366, 1021553), (39559, 525922), (78581, 264758), (79118, 262961), (97019, 214442), (107221, 194038), (132379, 157162)]