19788808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1063}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 40219200

約数和(自身を除く): 20430392

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 179, 358, 716, 1063, 1432, 2126, 2327, 4252, 4654, 8504, 9308, 13819, 18616, 27638, 55276, 110552, 190277, 380554, 761108, 1522216, 2473601, 4947202, 9894404, 19788808]

約数ペア:

[(1, 19788808), (2, 9894404), (4, 4947202), (8, 2473601), (13, 1522216), (26, 761108), (52, 380554), (104, 190277), (179, 110552), (358, 55276), (716, 27638), (1063, 18616), (1432, 13819), (2126, 9308), (2327, 8504), (4252, 4654)]