256308

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:104

約数の個数: 48

約数和(自身を含む): 677376

約数和(自身を除く): 421068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 53, 62, 78, 93, 106, 124, 156, 159, 186, 212, 318, 372, 403, 636, 689, 806, 1209, 1378, 1612, 1643, 2067, 2418, 2756, 3286, 4134, 4836, 4929, 6572, 8268, 9858, 19716, 21359, 42718, 64077, 85436, 128154, 256308]

約数ペア:

[(1, 256308), (2, 128154), (3, 85436), (4, 64077), (6, 42718), (12, 21359), (13, 19716), (26, 9858), (31, 8268), (39, 6572), (52, 4929), (53, 4836), (62, 4134), (78, 3286), (93, 2756), (106, 2418), (124, 2067), (156, 1643), (159, 1612), (186, 1378), (212, 1209), (318, 806), (372, 689), (403, 636)]