79681420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43781}}^1$

素因数の和:43810

約数の個数: 48

約数和(自身を含む): 205950528

約数和(自身を除く): 126269108

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, 43781, 87562, 175124, 218905, 306467, 437810, 569153, 612934, 875620, 1138306, 1225868, 1532335, 2276612, 2845765, 3064670, 3984071, 5691530, 6129340, 7968142, 11383060, 15936284, 19920355, 39840710, 79681420]

約数ペア:

[(1, 79681420), (2, 39840710), (4, 19920355), (5, 15936284), (7, 11383060), (10, 7968142), (13, 6129340), (14, 5691530), (20, 3984071), (26, 3064670), (28, 2845765), (35, 2276612), (52, 1532335), (65, 1225868), (70, 1138306), (91, 875620), (130, 612934), (140, 569153), (182, 437810), (260, 306467), (364, 218905), (455, 175124), (910, 87562), (1820, 43781)]