81322672

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1291}}^1$

素因数の和:1457

約数の個数: 40

約数和(自身を含む): 164052992

約数和(自身を除く): 82730320

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 127, 248, 254, 496, 508, 1016, 1291, 2032, 2582, 3937, 5164, 7874, 10328, 15748, 20656, 31496, 40021, 62992, 80042, 160084, 163957, 320168, 327914, 640336, 655828, 1311656, 2623312, 5082667, 10165334, 20330668, 40661336, 81322672]

約数ペア:

[(1, 81322672), (2, 40661336), (4, 20330668), (8, 10165334), (16, 5082667), (31, 2623312), (62, 1311656), (124, 655828), (127, 640336), (248, 327914), (254, 320168), (496, 163957), (508, 160084), (1016, 80042), (1291, 62992), (2032, 40021), (2582, 31496), (3937, 20656), (5164, 15748), (7874, 10328)]