81625804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 162005760

約数和(自身を除く): 80379956

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 139, 278, 299, 491, 556, 598, 982, 1196, 1807, 1964, 3197, 3614, 6383, 6394, 7228, 11293, 12766, 12788, 22586, 25532, 41561, 45172, 68249, 83122, 136498, 146809, 166244, 272996, 293618, 587236, 887237, 1569727, 1774474, 3139454, 3548948, 6278908, 20406451, 40812902, 81625804]

約数ペア:

[(1, 81625804), (2, 40812902), (4, 20406451), (13, 6278908), (23, 3548948), (26, 3139454), (46, 1774474), (52, 1569727), (92, 887237), (139, 587236), (278, 293618), (299, 272996), (491, 166244), (556, 146809), (598, 136498), (982, 83122), (1196, 68249), (1807, 45172), (1964, 41561), (3197, 25532), (3614, 22586), (6383, 12788), (6394, 12766), (7228, 11293)]