25081420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13781}}^1$

素因数の和:13810

約数の個数: 48

約数和(自身を含む): 64830528

約数和(自身を除く): 39749108

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 13781, 27562, 55124, 68905, 96467, 137810, 179153, 192934, 275620, 358306, 385868, 482335, 716612, 895765, 964670, 1254071, 1791530, 1929340, 2508142, 3583060, 5016284, 6270355, 12540710, 25081420]

約数ペア:

[(1, 25081420), (2, 12540710), (4, 6270355), (5, 5016284), (7, 3583060), (10, 2508142), (13, 1929340), (14, 1791530), (20, 1254071), (26, 964670), (28, 895765), (35, 716612), (52, 482335), (65, 385868), (70, 358306), (91, 275620), (130, 192934), (140, 179153), (182, 137810), (260, 96467), (364, 68905), (455, 55124), (910, 27562), (1820, 13781)]