81988788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22699}}^1$

素因数の和:22756

約数の個数: 48

約数和(自身を含む): 223731200

約数和(自身を除く): 141742412

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 84, 86, 129, 172, 258, 301, 516, 602, 903, 1204, 1806, 3612, 22699, 45398, 68097, 90796, 136194, 158893, 272388, 317786, 476679, 635572, 953358, 976057, 1906716, 1952114, 2928171, 3904228, 5856342, 6832399, 11712684, 13664798, 20497197, 27329596, 40994394, 81988788]

約数ペア:

[(1, 81988788), (2, 40994394), (3, 27329596), (4, 20497197), (6, 13664798), (7, 11712684), (12, 6832399), (14, 5856342), (21, 3904228), (28, 2928171), (42, 1952114), (43, 1906716), (84, 976057), (86, 953358), (129, 635572), (172, 476679), (258, 317786), (301, 272388), (516, 158893), (602, 136194), (903, 90796), (1204, 68097), (1806, 45398), (3612, 22699)]