128640824

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39901}}^1$

素因数の和:39951

約数の個数: 32

約数和(自身を含む): 268141440

約数和(自身を除く): 139500616

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 39901, 79802, 159604, 319208, 518713, 1037426, 1236931, 2074852, 2473862, 4149704, 4947724, 9895448, 16080103, 32160206, 64320412, 128640824]

約数ペア:

[(1, 128640824), (2, 64320412), (4, 32160206), (8, 16080103), (13, 9895448), (26, 4947724), (31, 4149704), (52, 2473862), (62, 2074852), (104, 1236931), (124, 1037426), (248, 518713), (403, 319208), (806, 159604), (1612, 79802), (3224, 39901)]