20156884706

素因数分解:

$2^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{421}}^1\times {\mathrm{1901}}^1$

素因数の和:2595

約数の個数: 48

約数和(自身を含む): 35411047992

約数和(自身を除く): 15254163286

約数列:

[1, 2, 7, 14, 49, 98, 257, 421, 514, 842, 1799, 1901, 2947, 3598, 3802, 5894, 12593, 13307, 20629, 25186, 26614, 41258, 93149, 108197, 186298, 216394, 488557, 757379, 800321, 977114, 1514758, 1600642, 3419899, 5301653, 5602247, 6839798, 10603306, 11204494, 23939293, 39215729, 47878586, 78431458, 205682497, 411364994, 1439777479, 2879554958, 10078442353, 20156884706]

約数ペア:

[(1, 20156884706), (2, 10078442353), (7, 2879554958), (14, 1439777479), (49, 411364994), (98, 205682497), (257, 78431458), (421, 47878586), (514, 39215729), (842, 23939293), (1799, 11204494), (1901, 10603306), (2947, 6839798), (3598, 5602247), (3802, 5301653), (5894, 3419899), (12593, 1600642), (13307, 1514758), (20629, 977114), (25186, 800321), (26614, 757379), (41258, 488557), (93149, 216394), (108197, 186298)]