56778020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1667}}^1$

素因数の和:1820

約数の個数: 48

約数和(自身を含む): 129463488

約数和(自身を除く): 72685468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1667, 1703, 2620, 3334, 3406, 6668, 6812, 8335, 8515, 16670, 17030, 21671, 33340, 34060, 43342, 86684, 108355, 216710, 218377, 433420, 436754, 873508, 1091885, 2183770, 2838901, 4367540, 5677802, 11355604, 14194505, 28389010, 56778020]

約数ペア:

[(1, 56778020), (2, 28389010), (4, 14194505), (5, 11355604), (10, 5677802), (13, 4367540), (20, 2838901), (26, 2183770), (52, 1091885), (65, 873508), (130, 436754), (131, 433420), (260, 218377), (262, 216710), (524, 108355), (655, 86684), (1310, 43342), (1667, 34060), (1703, 33340), (2620, 21671), (3334, 17030), (3406, 16670), (6668, 8515), (6812, 8335)]