81649928

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{257}}^1\times {\mathrm{263}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 155295360

約数和(自身を除く): 73645432

約数列:

[1, 2, 4, 8, 151, 257, 263, 302, 514, 526, 604, 1028, 1052, 1208, 2056, 2104, 38807, 39713, 67591, 77614, 79426, 135182, 155228, 158852, 270364, 310456, 317704, 540728, 10206241, 20412482, 40824964, 81649928]

約数ペア:

[(1, 81649928), (2, 40824964), (4, 20412482), (8, 10206241), (151, 540728), (257, 317704), (263, 310456), (302, 270364), (514, 158852), (526, 155228), (604, 135182), (1028, 79426), (1052, 77614), (1208, 67591), (2056, 39713), (2104, 38807)]