4478890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 8781696

約数和(自身を除く): 4302806

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 263, 526, 655, 1310, 1315, 1703, 2630, 3406, 3419, 6838, 8515, 17030, 17095, 34190, 34453, 68906, 172265, 344530, 447889, 895778, 2239445, 4478890]

約数ペア:

[(1, 4478890), (2, 2239445), (5, 895778), (10, 447889), (13, 344530), (26, 172265), (65, 68906), (130, 34453), (131, 34190), (262, 17095), (263, 17030), (526, 8515), (655, 6838), (1310, 3419), (1315, 3406), (1703, 2630)]