20784899324

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{179}}^1\times {\mathrm{2467}}^1$

素因数の和:2739

約数の個数: 72

約数和(自身を含む): 42863829120

約数和(自身を除く): 22078929796

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 179, 287, 358, 574, 716, 1148, 1253, 1681, 2467, 2506, 3362, 4934, 5012, 6724, 7339, 9868, 11767, 14678, 17269, 23534, 29356, 34538, 47068, 51373, 69076, 101147, 102746, 202294, 205492, 300899, 404588, 441593, 601798, 708029, 883186, 1203596, 1416058, 1766372, 2106293, 2832116, 3091151, 4147027, 4212586, 6182302, 8294054, 8425172, 12364604, 16588108, 18105313, 29029189, 36210626, 58058378, 72421252, 116116756, 126737191, 253474382, 506948764, 742317833, 1484635666, 2969271332, 5196224831, 10392449662, 20784899324]

約数ペア:

[(1, 20784899324), (2, 10392449662), (4, 5196224831), (7, 2969271332), (14, 1484635666), (28, 742317833), (41, 506948764), (82, 253474382), (164, 126737191), (179, 116116756), (287, 72421252), (358, 58058378), (574, 36210626), (716, 29029189), (1148, 18105313), (1253, 16588108), (1681, 12364604), (2467, 8425172), (2506, 8294054), (3362, 6182302), (4934, 4212586), (5012, 4147027), (6724, 3091151), (7339, 2832116), (9868, 2106293), (11767, 1766372), (14678, 1416058), (17269, 1203596), (23534, 883186), (29356, 708029), (34538, 601798), (47068, 441593), (51373, 404588), (69076, 300899), (101147, 205492), (102746, 202294)]