164799920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{108421}}^1$

素因数の和:108453

約数の個数: 40

約数和(自身を含む): 403329840

約数和(自身を除く): 238529920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 108421, 216842, 433684, 542105, 867368, 1084210, 1734736, 2059999, 2168420, 4119998, 4336840, 8239996, 8673680, 10299995, 16479992, 20599990, 32959984, 41199980, 82399960, 164799920]

約数ペア:

[(1, 164799920), (2, 82399960), (4, 41199980), (5, 32959984), (8, 20599990), (10, 16479992), (16, 10299995), (19, 8673680), (20, 8239996), (38, 4336840), (40, 4119998), (76, 2168420), (80, 2059999), (95, 1734736), (152, 1084210), (190, 867368), (304, 542105), (380, 433684), (760, 216842), (1520, 108421)]