19936699280

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1061}}^1\times {\mathrm{1217}}^1$

素因数の和:2484

約数の個数: 80

約数和(自身を含む): 46675231344

約数和(自身を除く): 26738532064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1061, 1217, 1544, 1930, 2122, 2434, 3088, 3860, 4244, 4868, 5305, 6085, 7720, 8488, 9736, 10610, 12170, 15440, 16976, 19472, 21220, 24340, 42440, 48680, 84880, 97360, 204773, 234881, 409546, 469762, 819092, 939524, 1023865, 1174405, 1291237, 1638184, 1879048, 2047730, 2348810, 2582474, 3276368, 3758096, 4095460, 4697620, 5164948, 6456185, 8190920, 9395240, 10329896, 12912370, 16381840, 18790480, 20659792, 25824740, 51649480, 103298960, 249208741, 498417482, 996834964, 1246043705, 1993669928, 2492087410, 3987339856, 4984174820, 9968349640, 19936699280]

約数ペア:

[(1, 19936699280), (2, 9968349640), (4, 4984174820), (5, 3987339856), (8, 2492087410), (10, 1993669928), (16, 1246043705), (20, 996834964), (40, 498417482), (80, 249208741), (193, 103298960), (386, 51649480), (772, 25824740), (965, 20659792), (1061, 18790480), (1217, 16381840), (1544, 12912370), (1930, 10329896), (2122, 9395240), (2434, 8190920), (3088, 6456185), (3860, 5164948), (4244, 4697620), (4868, 4095460), (5305, 3758096), (6085, 3276368), (7720, 2582474), (8488, 2348810), (9736, 2047730), (10610, 1879048), (12170, 1638184), (15440, 1291237), (16976, 1174405), (19472, 1023865), (21220, 939524), (24340, 819092), (42440, 469762), (48680, 409546), (84880, 234881), (97360, 204773)]