139205872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21589}}^1$

素因数の和:21641

約数の個数: 40

約数和(自身を含む): 299841920

約数和(自身を除く): 160636048

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 21589, 43178, 86356, 172712, 280657, 345424, 561314, 669259, 1122628, 1338518, 2245256, 2677036, 4490512, 5354072, 8700367, 10708144, 17400734, 34801468, 69602936, 139205872]

約数ペア:

[(1, 139205872), (2, 69602936), (4, 34801468), (8, 17400734), (13, 10708144), (16, 8700367), (26, 5354072), (31, 4490512), (52, 2677036), (62, 2245256), (104, 1338518), (124, 1122628), (208, 669259), (248, 561314), (403, 345424), (496, 280657), (806, 172712), (1612, 86356), (3224, 43178), (6448, 21589)]