289315858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1\times {\mathrm{491}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 474610752

約数和(自身を除く): 185294894

約数列:

[1, 2, 13, 26, 131, 173, 262, 346, 491, 982, 1703, 2249, 3406, 4498, 6383, 12766, 22663, 45326, 64321, 84943, 128642, 169886, 294619, 589238, 836173, 1104259, 1672346, 2208518, 11127533, 22255066, 144657929, 289315858]

約数ペア:

[(1, 289315858), (2, 144657929), (13, 22255066), (26, 11127533), (131, 2208518), (173, 1672346), (262, 1104259), (346, 836173), (491, 589238), (982, 294619), (1703, 169886), (2249, 128642), (3406, 84943), (4498, 64321), (6383, 45326), (12766, 22663)]