20015008

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3701}}^1$

素因数の和:3737

約数の個数: 36

約数和(自身を含む): 42680358

約数和(自身を除く): 22665350

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3701, 5408, 7402, 14804, 29608, 48113, 59216, 96226, 118432, 192452, 384904, 625469, 769808, 1250938, 1539616, 2501876, 5003752, 10007504, 20015008]

約数ペア:

[(1, 20015008), (2, 10007504), (4, 5003752), (8, 2501876), (13, 1539616), (16, 1250938), (26, 769808), (32, 625469), (52, 384904), (104, 192452), (169, 118432), (208, 96226), (338, 59216), (416, 48113), (676, 29608), (1352, 14804), (2704, 7402), (3701, 5408)]