31025020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 72125424

約数和(自身を除く): 41100404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 137, 169, 260, 268, 274, 335, 338, 548, 670, 676, 685, 845, 871, 1340, 1370, 1690, 1742, 1781, 2740, 3380, 3484, 3562, 4355, 7124, 8710, 8905, 9179, 11323, 17420, 17810, 18358, 22646, 23153, 35620, 36716, 45292, 45895, 46306, 56615, 91790, 92612, 113230, 115765, 119327, 183580, 226460, 231530, 238654, 463060, 477308, 596635, 1193270, 1551251, 2386540, 3102502, 6205004, 7756255, 15512510, 31025020]

約数ペア:

[(1, 31025020), (2, 15512510), (4, 7756255), (5, 6205004), (10, 3102502), (13, 2386540), (20, 1551251), (26, 1193270), (52, 596635), (65, 477308), (67, 463060), (130, 238654), (134, 231530), (137, 226460), (169, 183580), (260, 119327), (268, 115765), (274, 113230), (335, 92612), (338, 91790), (548, 56615), (670, 46306), (676, 45895), (685, 45292), (845, 36716), (871, 35620), (1340, 23153), (1370, 22646), (1690, 18358), (1742, 17810), (1781, 17420), (2740, 11323), (3380, 9179), (3484, 8905), (3562, 8710), (4355, 7124)]