26306540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 61549488

約数和(自身を除く): 35242948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 169, 172, 181, 215, 260, 338, 362, 430, 559, 676, 724, 845, 860, 905, 1118, 1690, 1810, 2236, 2353, 2795, 3380, 3620, 4706, 5590, 7267, 7783, 9412, 11180, 11765, 14534, 15566, 23530, 29068, 30589, 31132, 36335, 38915, 47060, 61178, 72670, 77830, 101179, 122356, 145340, 152945, 155660, 202358, 305890, 404716, 505895, 611780, 1011790, 1315327, 2023580, 2630654, 5261308, 6576635, 13153270, 26306540]

約数ペア:

[(1, 26306540), (2, 13153270), (4, 6576635), (5, 5261308), (10, 2630654), (13, 2023580), (20, 1315327), (26, 1011790), (43, 611780), (52, 505895), (65, 404716), (86, 305890), (130, 202358), (169, 155660), (172, 152945), (181, 145340), (215, 122356), (260, 101179), (338, 77830), (362, 72670), (430, 61178), (559, 47060), (676, 38915), (724, 36335), (845, 31132), (860, 30589), (905, 29068), (1118, 23530), (1690, 15566), (1810, 14534), (2236, 11765), (2353, 11180), (2795, 9412), (3380, 7783), (3620, 7267), (4706, 5590)]