12918256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:553

約数の個数: 40

約数和(自身を含む): 27185760

約数和(自身を除く): 14267504

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 359, 692, 718, 1384, 1436, 2249, 2768, 2872, 4498, 4667, 5744, 8996, 9334, 17992, 18668, 35984, 37336, 62107, 74672, 124214, 248428, 496856, 807391, 993712, 1614782, 3229564, 6459128, 12918256]

約数ペア:

[(1, 12918256), (2, 6459128), (4, 3229564), (8, 1614782), (13, 993712), (16, 807391), (26, 496856), (52, 248428), (104, 124214), (173, 74672), (208, 62107), (346, 37336), (359, 35984), (692, 18668), (718, 17992), (1384, 9334), (1436, 8996), (2249, 5744), (2768, 4667), (2872, 4498)]