80806040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2203}}^1$

素因数の和:2352

約数の個数: 64

約数和(自身を含む): 209468160

約数和(自身を除く): 128662120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 917, 1048, 1310, 1834, 2203, 2620, 3668, 4406, 4585, 5240, 7336, 8812, 9170, 11015, 15421, 17624, 18340, 22030, 30842, 36680, 44060, 61684, 77105, 88120, 123368, 154210, 288593, 308420, 577186, 616840, 1154372, 1442965, 2020151, 2308744, 2885930, 4040302, 5771860, 8080604, 10100755, 11543720, 16161208, 20201510, 40403020, 80806040]

約数ペア:

[(1, 80806040), (2, 40403020), (4, 20201510), (5, 16161208), (7, 11543720), (8, 10100755), (10, 8080604), (14, 5771860), (20, 4040302), (28, 2885930), (35, 2308744), (40, 2020151), (56, 1442965), (70, 1154372), (131, 616840), (140, 577186), (262, 308420), (280, 288593), (524, 154210), (655, 123368), (917, 88120), (1048, 77105), (1310, 61684), (1834, 44060), (2203, 36680), (2620, 30842), (3668, 22030), (4406, 18340), (4585, 17624), (5240, 15421), (7336, 11015), (8812, 9170)]