18426460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 42067872

約数和(自身を除く): 23641412

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 541, 655, 1082, 1310, 1703, 2164, 2620, 2705, 3406, 5410, 6812, 7033, 8515, 10820, 14066, 17030, 28132, 34060, 35165, 70330, 70871, 140660, 141742, 283484, 354355, 708710, 921323, 1417420, 1842646, 3685292, 4606615, 9213230, 18426460]

約数ペア:

[(1, 18426460), (2, 9213230), (4, 4606615), (5, 3685292), (10, 1842646), (13, 1417420), (20, 921323), (26, 708710), (52, 354355), (65, 283484), (130, 141742), (131, 140660), (260, 70871), (262, 70330), (524, 35165), (541, 34060), (655, 28132), (1082, 17030), (1310, 14066), (1703, 10820), (2164, 8515), (2620, 7033), (2705, 6812), (3406, 5410)]